Thanks Trevor. I just bought the 294pro and that Triad filter (very expensive!) so now I have to start all over again learning OSC. I mainly bought it for my travel rig (Sky Guider Pro & Zenith Star), but I may as well use my other mount and play with it while my other rig is droning on shooting 30 min exposures. Keep posting processing videos on this when you can. They are really helpful to all of us. Sean
Trevor, I think this is one of the most informative videos for me. I've watched your "edit along with me" videos but I still learned more here. I'm now going to rewatch all your editing videos. Maybe I was too new back then to get it
Hi Trevor, thanks for this vid - I have an STC Duo Band but have not got around to use it so far. No more! I had no idea this sort of flexibility was available. Keep up the great work!
Started subscribing a few months ago. Really enjoying the videos. Just starting out on my astrophotography journey from the other end of the world (NZ) so finding this channel a great resource.
Excellent video, Trevor. I have an Optolong L-eXtreme dual NB filter and ASI294MC Pro combo. This video has given me confidence in processing the data. NB data processing has extra challenge as channels get separated out.
Just ordered the ZWO 2600 and putting it on my HD 11 inch with hyperstar. I watched entire video and got bonus training with photoshop. Buying my filter and slider this week. (either the zwo one or the starizona one) Thanks!
Hey Trevor, thanks so much for this vid, I requested you cover this on your Insta last week, I'm sure I wasn't the only one! Very clear, and great to see that the process is simpler than I thought!
Thanks for another great video! I am finally going to dive in with processing more in photoshop etc. I pretty much stack & process with pixinsight but am now thinking I need to fine tune things outside of it! Will be binge watching your processing sessions every night the weather sucks and imaging is not in the cards!
Good to see that you came back to do more than just pushing products :-) Please more of actual Astrowork,it seems to fit you and your Channel pretty well :-) Best whishes and clear Skies,Marc
Thanks for the video Trevor - very informative. You make processing look so effortless ! Something I need to work on. My question for you is: Do you think that for us with only a DSLR can get away with using some of these narrowband filters? They are not inexpensive, but there have been some recently reviewed dual narrowband filters (Ha and OIII) that are getting more reasonable and I would consider purchasing one if it would work for me. I'm in a Bortle 8-9 zone and have a unmodified DSLR (Canon EOS T5/1200D) and have it on a 70mm doublet using the SW SA GTi mount. My only filter experience is using a broadband CLS filter... any feedback would be appreciated.
This might be fun on a RASA with OSC, especially as summer begins for us in the Northern hemisphere. Lots of full-frame nebulosity to look at. Great video!
Rob's Backyard Astrophotography hi. I’ve heard that with fast scopes like RASA the band shift means these filters do not work well. I’d be interested if anyone knows more.
@@JohnMcGFrance There are specific High-speed filters for this kind of thing, if I am correct. I think Baader makes them. I've never tried them, though, as I have never has a system faster than an SCT.
Rob's Backyard Astrophotography Your correct and I have them for my mono camera but there’s no multi and filters that work at F2 as far as I know so a OSC on a RASA couldn’t use the Trivandrum.quadband filters on that setup.
Hope you don't mind a newbie question; when actually pointing your camera, is there a visible target that can be centered or you "just know" where target is and finally get a visible image during processing?
Good Day Trevor. Is there any advantages or disadvantages to using a tri narrow band filter or three separate ones? I will be using a 294mc pro with a Hyperstar. On a 8" edge HD with a starzona filter drawer.
Well I plan to go for a cooled cam and narrowband imaging next winter… would you suggest to start with a mono or with a one-shot colour cam? I don't mind for the extra effort...
thanks for reviewing the filter. Can you actually do SHO processing with this filter? Won't the Ha and SII both excite the same red portion of the Bayer matrix?
Hey Trevor, I've been a big fan for some time now and a few months ago you inspired me to register for the Cherry Springs Star Party, which I'm very exited for! My questions is, will you be attending this year's star party? If yes, what days will you be there and would you be against me coming over to say hi if I were to see you? Thanks!
do you recommend filters that go on the front of a lens when doing DSLR and a lens and where is the place to find those if so. Or clip in and same where to find those for canon aps c? Optolong shows clip in on their website, however the 2 distributors in the US don't stock them.
...in Europe this TriadFilter costs around 1300.- bucks, in the US its 1000.- bucks....this makes zero sense....rather go for a mono CMOS and get the narrow band filters instead....
@@medec021 This is the path I am taking. I didn't know the price of the filter till I read these comments. Now I see clearly I did the right thing to just add mono camera. LRGB filters are way less for the whole set! However, the F/2 filters for my scope are back up in the ugly price range you mentioned, and finding a used set? Good luck.
I have the same camera the ASI294mc Pro and TSA-120 FT with Ioptron CEM-120 had a lot of trouble setting up WiFi with my I5 Intel NUCs now finally I ready to roll iching to get some Nebulas
I am having some difficulties with the LP-2 25MM Narrowband filter that I bought: I do notice some difference in my photos, but the background is never black or gray, and the filter turns everything blue. I am not sure how to get full colors on that filter. Also, am I not supposed to process photos in DSS program? I can never get colors to come out in that program because the images always turn out in B&W, but I shoot in color. Also, that Saturation color option in DSS is completely useless
Hi! which color profile should i shoot with a duo narrowband filter? Im, using a OSC with a duo narrowband filter and the result comes out all green, is that normal?
By the time I started hearing about these NB filters applied to a color camera, I had already opted to buy the expensive mono camera (ASI1600) and the LRGB filters. Since I shoot at F2 with the RASA, I will eventually swallow the cost of the Baader F/2's as well. Ultimately, this is probably the best solution anyhow. Learning PixInsight from scratch is also demanding and expensive. Oh well. I am getting nice OSC images with my ASI 533 and longer exposure times, and my "Tulip" looks very nice but the famous "bow shock wave" from Cygnus X-1 is apparently all OIII, so that is going to ultimately require NB . With all the "red" you just can't bring out the white OIII with normal OSC and a L-eNhance filter.
Hello fellow colegue astronomer. I would like to ask if you ever saw any "anomalies" on the night sky? I did last night and would love to share a few details. 24.5. 2019 This night we saw two very strange straight white lines travelling across the sky, their look I can only describe as "Beams of Light". 24.5. 2019 23:00, GPS COORDS: [48.593512, 18.843580] The first sighting occurred when I was loading the telescope to my car, being still in the city, I though maybe it is a strange illumination of cables going from one building to another, tho it didn't look like it. Unfortunately I didn't have my binos or telescope up so I was only observing this by naked eye. It lasted for approx. 1,5 min. and didn't look like anything I saw before, it was bright, fine straight stream of something travelling across the sky. The closest I can think of is comet, but comets don't travel this fast and they don't look like this. It started to disappear slowly fading to the dark sky. Precisely I observed this from [48.593512, 18.843580], "beam of light" located direct EAST, inclination 30°, "Beam" visually travelling from South to North. 25.5. 2019 1:00, GPS COORDS: [48.593512, 18.843580] The second sighting occurred at our observation site. This night was darker than ever. Conditions perfect. Same looking "Beam of Light" travelling across the sky again. This time I had my telescope up. It was moving too fast to catch with eyepiece but I was able to lock and follow it with my finderscope (9x50mm). Surprisingly again, this didn't look like anything I saw before. I tried to find a source that leaves this white, glowy trail behind but didn't see anything even tho I saw the trail too precisely, high contrast, sharp image. Observed NORTH WEST from the site at 35° inclination, "Beam" travelling from West to East. Again it lasted for 2 mins. before it completely disappeared in the dark sky. The trail left behind the unknown object looked like it was "dispersed" in the atmosphere. Possible conclusions: 1. Plane atmospheric contrails - Highly unlikely, I saw many planes that night, none of them left any trail behind. Also I was unable to find the object causing the trail. 2. Comet - Unlikely due to how the trail looked like (single, straight, fine line) and how it "dispersed" and faded away. Also comets do have very bright nucleus. I wasn't able to see anything moving ahead of the trail. Seemed like it was left by nothing. 3. Human spaceship or rocket escaping our atmosphere - Highly unlikely as we observed two of these “Beams” in a short period of time, travelling from different directions. Also these looked like they "appear" on the sky and also "disappear" or "disperse" on the sky as well, not like something simply escaping the atmosphere. 4. Meteor - Not possible due to fact this line stood there for 2 mins. and didn't change speed or direction. But we saw a few meteors that night. If somebody knows more or seen something similar then please let me know.
Hi Trevor, great video. Thanks for sharing your knowledge I follow your channel from Australia. Quick questions: have you ever used the DGM NPB nebula filter? And also this tutorial is for photoshop, can I do this with Lightroom? Thanks in advance for your answer.
so my ir moded 450d will be able to use a ha 12 filter? or 7nm? ill probley be in the 2 inch area as i dont use a wheel and i think i had a to much vig. cant remember how to spell it lol the corners blacked out lol .. on 1 1/2 inch.. thanks for a cheap site for one .. Lumicon Night Sky Hydrogen-Alpha Filter - 2" - LF3090 i see this one for 75 bucks... is this one to use ??
Alot of money in thoose filters. The OPT Triband is extremely expensive in 2". Between a 294mc pro and a TriAd filter you can get a good mono camera and good filters. For thoose who dont like mono I quess it's a good alternative.
Hi Trevor Troy here I always watch your videos can I ask how to shoot deep sky with a 500 mirror lens + what's the best and cheapest auto guider for a DSLR Thanks Troy
I just got my first DSLR camera. I am hoping to get some experience under my belt. My main focus once I get better would be astrophotography.... once I buy my first telescope that is lol
I guess u can not really say there is the ultimate filter to start with. First off all if u have no filter yet a Broadband filter is defintily the way to go. Most of the filter come in 1,25" and 2" versions. If u got a filter like this and want to go further into the filter game with some view for later I would say a H- Alpha Filter is the best choice. I recently had the same question in the room. I already got the Astronomik Clip in Filter CLS CCD for my DSLR. Which is a good choice for the start in my opinion. In advance u have to think will u buy a mono camera eventually or questions like that. If u are looking forward or even own a mono camera a duo or even quad band filter would be considered useless. Therefore the choice could be an H-Alpha filter, because the majority of nebulas emit light in this wavelenght. In general if u want to get ride of lightpollusion: Broadband and Narrowband filters will help u out. To get RGB Images u will definetly need a Broadband in firstplaces like the Baader Mond and Skyglow, the CLS with or without CDD or the UHC that u brought up. Narrowband can allways add a a layer on Top of an RGB-image like HaRGB. You can also go for a false color Image with Ha and OIII or even SII as 3 filters. I think Dylan O'Donnell made a list about different options with narrowband filter imaging combinations. In your case i am not able to judge there is no perfect answer to it with the information u gave me. ALSO this is my point of view so do not trust everything i told u. For the beginning a Broadband filter. If u want to dive into it: Narrowbandfilters (Ha,OIII,SII) BUT always look up the filters u buy some could create negative effects in your images. I hope i could help Greetings Sören Göhler PS: Please ignore if i missspelled anything. You could give me an advice then i correct it. (I am not a native speaker)
@@Soeren_Goehler thank you for the detailed response 🌹 I use dslr with Tamron 70-200 and Sigma 150-600mm and explore scientific ed80. I don't think I will use ccd camera soon. And I mainly shoot In dark areas so I don't need filter for light pollution. Is it OK to use only hydrogen alpha fikter? Because I see most nebulas are rich in hydrogen alpha. And can I take photos with ha and o3 filter? Let's say 2 hours for each and then stack them together? Thanks again
I like the way you teach this hobby but if you can go a little bit slower on the mouse we can fellow more accurately, thank you Travor you are the wizard God bless you and clear sky.
Why do you end up with an 8 bit image after stacking? That's a lot of good data you've lost there, stacking is a good way to get an enormous bit depth as a base for postprocessing. The information you've lost by stacking into 8 bit doesn't come back by simply converting back to 16bit.
Would it be dumb to get an H-alpha or O-III filter for visual use through an 8" Dobsonian? Im in a bortle 4-4.5 zone and i really want to see that damn IC434 hehe.
The filters do not transmit all of the light even within the pass bands. The charts Trevor are showing show relative not absolute transmission. These filters rely on the camera taking long exposures to gather enough light while the eye is limited to the equivalent of around 10 FPS. Also remember Ha emission is in the near infra red so you are not going to visually see much of this light. Bottom line narrow band filters cut out a lot of the available light so are probably a liability for most all targets visually.
@@RobB_VK6ES thanks for your input. Ill gather some more opinions over at stargazerslounge or and cloudynights and decide to waste or to not waste my money. Man its really unfair that the human eye is so fuggin bad at seeing the wavelenghts of the most beautiful Nebulae...
The standard filter to see the Horsehead is the H-Beta filter. I've used a few different brands, but Lumicon has been the best performer for me. With 8", you will need exceptionally dark skies -- probably around 21.5 or darker on the SQM. Buying a H-beta filter can be useful to have in the toolbox. Dave Knisely on Cloudynights has a couple lists for H-beta objects so that could potentially justify the purchase. In general, I find you need 12" (or larger) for reliable sightings. There are also ideal exit pupil requirements, but I'll just say you should shoot for about 60-75x magnification.
@@bad_metaphor oh wow, 21.5 is easy here. Its not often but i do get 21.6-21.9 bortle 3-4.5 (my bortle is changing depending on how many streetlights are working at once haha) once in a while according to clear outside and good to stargaze Higher magnification? Imo, that just makes dim targets even harder to see. Anyways, the lowest usable magnification for an 8" skywatcher is 48x right? It seems to me that its still a little much. I tried around 25 times so far and failed to see it everytime. Even with fully dark adapted eyes... IC 434 Is a real challenge to see.
@@bad_metaphor Welp, im back 4 years later to report my results. If anyone else is reading this: Do *not* waste your money on an H-Beta filter. Having finally seen IC434 through my 8 inch just 3.5 months ago, it is unbelievable how dim it really is. Adding the H-Beta filter just made every way harder, not only on IC434 but also on M43, IC5146, IC417 and NGC1499. No matter if with or without any Telescope, the filter made it worse. I tried the Lumicon, Astronomic, Explore Scientific and Omegon H-Beta filters, luckily being able to send all of them back. The filters i can very much recommend are: StarGuy UHC and Baader UHC-S. Those two are, imo, the best filters for visual.
Deepsky through a non tracking Telescope? Yes, possible. Push the longest exposure time possible. Use a big aperture (8" or more if possible) Use the highest ISO if your exposures are under 1 second. I find 1sec ISO25600 works for the Nikon D3400. Let your camera cool between shots. Have multiple batteries because the high ISO will shred them Take LOTS and LOTS of frames. 250-500 lightframes would be a good start for M42 or M81/M82. (yes its easy to get M82 with a 1sec exposure, ive done it multiple times through an 8" stock dobsonian with a d3400 at prime focus) Youre dealing with extreme noise, plan in around 100-200 darkframes. Flatframes only if you use a small refractor.
I started with no tracking 300mm f4 lens. At that power I could get decent results at a Max 3.2 sec exposure. You need to shoot a ton of exposures, but I got a decent result with m31 Andromeda Galaxy, stacking 40 frames for a 2 minute total exposure. Not mind blowing but cool. You could stack hundreds but it does take awhile to stack. If you go wider lens for milky way, or constellations you can get up to 10 secs with minimal star trails. If your wide lens has a larger aperture like 2.8 then you can really get impressive results. With out tracking you do need to move and reframe the object after about 10 frames or so. Look up Forest Tanaka's video here on TH-cam: Astro photography without a star tracker. Also start saving up for a Sky Watched Star Adventurers about $500.00 ($390 US). I just got one and it is so easy to use, I am getting good 2 minute frames and my latest m31 has got me excited to do more. Good luck, and feel free to ask questions
I find it frustrating when I follow your steps but my Photoshop doesn't behave the same as yours. You go too fast! Please take time to show exactly what menu selections you make and any special options selected if applicable.
$1075 add to cart for a filter? No way, sir. Buy a monochrome ASI 1600mmc with ZWO narrowband filters instead, enjoy a new camera with better resolution for the same price (of a filter :-) and get similar results
Mmmh, on the Quad, probably. I have the STC duo though which is a lot cheaper. Well still 300 bucks he! but I don't regret it. I'd be interested to see the same target shot with each of these filters. I suspect the difference would be tiny.
Thanks Trevor. I just bought the 294pro and that Triad filter (very expensive!) so now I have to start all over again learning OSC. I mainly bought it for my travel rig (Sky Guider Pro & Zenith Star), but I may as well use my other mount and play with it while my other rig is droning on shooting 30 min exposures. Keep posting processing videos on this when you can. They are really helpful to all of us.
Sean
Every time I watch your post processing I learn more and more. Thanks!
This spring sucks. It's been cloudy every day. Good for you for still getting out there in those few breaks in the cloud cover.
Trevor, I think this is one of the most informative videos for me. I've watched your "edit along with me" videos but I still learned more here. I'm now going to rewatch all your editing videos. Maybe I was too new back then to get it
Hi Trevor, thanks for this vid - I have an STC Duo Band but have not got around to use it so far. No more! I had no idea this sort of flexibility was available. Keep up the great work!
Started subscribing a few months ago. Really enjoying the videos. Just starting out on my astrophotography journey from the other end of the world (NZ) so finding this channel a great resource.
Excellent video, Trevor. I have an Optolong L-eXtreme dual NB filter and ASI294MC Pro combo. This video has given me confidence in processing the data. NB data processing has extra challenge as channels get separated out.
Very cool to separate out the different bands with separate colors. Great show
Thanks Trevor you answered a lot of questions I had just in this one video. Always looking forward to your next videos.
Thanks Trevor. I appreciate how clearly you explain things in your videos. BTW I love my new AstroBackyard T-Shirt!
Thanks for this video Trevor! You’re pushing me to also go for a 294mc pro osc camera. Pretty good convincing motivations! :-)
Hits the nail on the head, if your having fun, no way is the wrong way..
Just ordered the ZWO 2600 and putting it on my HD 11 inch with hyperstar. I watched entire video and got bonus training with photoshop. Buying my filter and slider this week. (either the zwo one or the starizona one) Thanks!
great video, very clear and well-arranged. great that you spend so much time there, but yes, the hobby. once you start .....
Very good Trevor !! two good examples!
Nice results. I'd love to try some of these filters sometime. Eager to get me an OIII filter next.
Hey Trevor, thanks so much for this vid, I requested you cover this on your Insta last week, I'm sure I wasn't the only one! Very clear, and great to see that the process is simpler than I thought!
That is a very clear and interesting video, thanks!
Thanks for another great video! I am finally going to dive in with processing more in photoshop etc. I pretty much stack & process with pixinsight but am now thinking I need to fine tune things outside of it! Will be binge watching your processing sessions every night the weather sucks and imaging is not in the cards!
Thought this sounded like a great idea, then saw that the dual narrow band is £329 in the UK!
Great video Trevor 👍
Your garden looks great !
Good to see that you came back to do more than just pushing products :-)
Please more of actual Astrowork,it seems to fit you and your Channel pretty well :-)
Best whishes and clear Skies,Marc
Thanks for the video Trevor - very informative. You make processing look so effortless ! Something I need to work on.
My question for you is: Do you think that for us with only a DSLR can get away with using some of these narrowband filters? They are not inexpensive, but there have been some recently reviewed dual narrowband filters (Ha and OIII) that are getting more reasonable and I would consider purchasing one if it would work for me. I'm in a Bortle 8-9 zone and have a unmodified DSLR (Canon EOS T5/1200D) and have it on a 70mm doublet using the SW SA GTi mount. My only filter experience is using a broadband CLS filter... any feedback would be appreciated.
Good Video Trevor. An idea for you on a future video would be how you take your FITS files and stack them in DSS. Keep up the great work.
This might be fun on a RASA with OSC, especially as summer begins for us in the Northern hemisphere. Lots of full-frame nebulosity to look at. Great video!
Rob's Backyard Astrophotography hi. I’ve heard that with fast scopes like RASA the band shift means these filters do not work well. I’d be interested if anyone knows more.
@@JohnMcGFrance There are specific High-speed filters for this kind of thing, if I am correct. I think Baader makes them. I've never tried them, though, as I have never has a system faster than an SCT.
Rob's Backyard Astrophotography Your correct and I have them for my mono camera but there’s no multi and filters that work at F2 as far as I know so a OSC on a RASA couldn’t use the Trivandrum.quadband filters on that setup.
Very much love your Video Trevor! Reminds me of your videos when I first signed up. Keep it up! Clear Skies!
Fun vid Trevor!
Since you set up from scratch every time, you must take fresh flats every time too. What technique do you use?
Hope you don't mind a newbie question; when actually pointing your camera, is there a visible target that can be centered or you "just know" where target is and finally get a visible image during processing?
Anyone notice the glitching on Trevor’s hoodie at 1:30?
If you use an un-moddified DSLR do these filters make any difference?
Good Day Trevor. Is there any advantages or disadvantages to using a tri narrow band filter or three separate ones? I will be using a 294mc pro with a Hyperstar. On a 8" edge HD with a starzona filter drawer.
Well I plan to go for a cooled cam and narrowband imaging next winter… would you suggest to start with a mono or with a one-shot colour cam? I don't mind for the extra effort...
thanks for reviewing the filter. Can you actually do SHO processing with this filter? Won't the Ha and SII both excite the same red portion of the Bayer matrix?
Hey Trevor, I've been a big fan for some time now and a few months ago you inspired me to register for the Cherry Springs Star Party, which I'm very exited for! My questions is, will you be attending this year's star party? If yes, what days will you be there and would you be against me coming over to say hi if I were to see you? Thanks!
do you recommend filters that go on the front of a lens when doing DSLR and a lens and where is the place to find those if so. Or clip in and same where to find those for canon aps c?
Optolong shows clip in on their website, however the 2 distributors in the US don't stock them.
...in Europe this TriadFilter costs around 1300.- bucks, in the US its 1000.- bucks....this makes zero sense....rather go for a mono CMOS and get the narrow band filters instead....
exactly :-)
@@medec021 This is the path I am taking. I didn't know the price of the filter till I read these comments. Now I see clearly I did the right thing to just add mono camera. LRGB filters are way less for the whole set! However, the F/2 filters for my scope are back up in the ugly price range you mentioned, and finding a used set? Good luck.
I have the same camera the ASI294mc Pro and TSA-120 FT with Ioptron CEM-120 had a lot of trouble setting up WiFi with my
I5 Intel NUCs now finally I ready to roll iching to get some Nebulas
I am having some difficulties with the LP-2 25MM Narrowband filter that I bought: I do notice some difference in my photos, but the background is never black or gray, and the filter turns everything blue. I am not sure how to get full colors on that filter. Also, am I not supposed to process photos in DSS program? I can never get colors to come out in that program because the images always turn out in B&W, but I shoot in color. Also, that Saturation color option in DSS is completely useless
Hi! which color profile should i shoot with a duo narrowband filter? Im, using a OSC with a duo narrowband filter and the result comes out all green, is that normal?
great trevor!! keep it up!!
By the time I started hearing about these NB filters applied to a color camera, I had already opted to buy the expensive mono camera (ASI1600) and the LRGB filters. Since I shoot at F2 with the RASA, I will eventually swallow the cost of the Baader F/2's as well. Ultimately, this is probably the best solution anyhow. Learning PixInsight from scratch is also demanding and expensive. Oh well. I am getting nice OSC images with my ASI 533 and longer exposure times, and my "Tulip" looks very nice but the famous "bow shock wave" from Cygnus X-1 is apparently all OIII, so that is going to ultimately require NB . With all the "red" you just can't bring out the white OIII with normal OSC and a L-eNhance filter.
Hello fellow colegue astronomer. I would like to ask if you ever saw any "anomalies" on the night sky? I did last night and would love to share a few details.
24.5. 2019
This night we saw two very strange straight white lines travelling across the sky, their look I can only describe as "Beams of Light".
24.5. 2019 23:00, GPS COORDS: [48.593512, 18.843580]
The first sighting occurred when I was loading the telescope to my car, being still in the city, I though maybe it is a strange illumination of cables going from one building to another, tho it didn't look like it. Unfortunately I didn't have my binos or telescope up so I was only observing this by naked eye. It lasted for approx. 1,5 min. and didn't look like anything I saw before, it was bright, fine straight stream of something travelling across the sky. The closest I can think of is comet, but comets don't travel this fast and they don't look like this. It started to disappear slowly fading to the dark sky. Precisely I observed this from [48.593512, 18.843580], "beam of light" located direct EAST, inclination 30°, "Beam" visually travelling from South to North.
25.5. 2019 1:00, GPS COORDS: [48.593512, 18.843580]
The second sighting occurred at our observation site. This night was darker than ever. Conditions perfect. Same looking "Beam of Light" travelling across the sky again. This time I had my telescope up. It was moving too fast to catch with eyepiece but I was able to lock and follow it with my finderscope (9x50mm). Surprisingly again, this didn't look like anything I saw before. I tried to find a source that leaves this white, glowy trail behind but didn't see anything even tho I saw the trail too precisely, high contrast, sharp image. Observed NORTH WEST from the site at 35° inclination, "Beam" travelling from West to East. Again it lasted for 2 mins. before it completely disappeared in the dark sky. The trail left behind the unknown object looked like it was "dispersed" in the atmosphere.
Possible conclusions:
1. Plane atmospheric contrails - Highly unlikely, I saw many planes that night, none of them left any trail behind. Also I was unable to find the object causing the trail.
2. Comet - Unlikely due to how the trail looked like (single, straight, fine line) and how it "dispersed" and faded away. Also comets do have very bright nucleus. I wasn't able to see anything moving ahead of the trail. Seemed like it was left by nothing.
3. Human spaceship or rocket escaping our atmosphere - Highly unlikely as we observed two of these “Beams” in a short period of time, travelling from different directions. Also these looked like they "appear" on the sky and also "disappear" or "disperse" on the sky as well, not like something simply escaping the atmosphere.
4. Meteor - Not possible due to fact this line stood there for 2 mins. and didn't change speed or direction. But we saw a few meteors that night.
If somebody knows more or seen something similar then please let me know.
Hi Trevor, great video. Thanks for sharing your knowledge I follow your channel from Australia. Quick questions: have you ever used the DGM NPB nebula filter? And also this tutorial is for photoshop, can I do this with Lightroom? Thanks in advance for your answer.
would the quad pick up more light than the duo? therefore needing less exposure times
Wonderful video, the filters are darn near expensive as the telescopes.
Thanks for this video ! it will increase my next images !
Do you have a narrowband filter solution for a camera lens, like a 58mm screw on filter?
Stupid question. Can the STC Duo Narrowband be used with astromodified dslr and 50mm lens? I mean, will it cut thru all the LP?
so my ir moded 450d will be able to use a ha 12 filter? or 7nm? ill probley be in the 2 inch area as i dont use a wheel and i think i had a to much vig. cant remember how to spell it lol the corners blacked out lol .. on 1 1/2 inch.. thanks for a cheap site for one ..
Lumicon Night Sky Hydrogen-Alpha Filter - 2" - LF3090 i see this one for 75 bucks... is this one to use ??
Alot of money in thoose filters. The OPT Triband is extremely expensive in 2". Between a 294mc pro and a TriAd filter you can get a good mono camera and good filters. For thoose who dont like mono I quess it's a good alternative.
Best bring your own lube with any filter purchase but those quad bands raise the brutality to a new level
BTW- Great photos. I hope to get somewhere close to your success someday.
Hmmm.... just wondering how the processing would go when using these filters with a monochrome camera.
Hi Trevor Troy here I always watch your videos can I ask how to shoot deep sky with a 500 mirror lens + what's the best and cheapest auto guider for a DSLR
Thanks Troy
I understood that opt triad captures stc astro band and two more. Why to buy stc astro ?.
I just got my first DSLR camera. I am hoping to get some experience under my belt. My main focus once I get better would be astrophotography.... once I buy my first telescope that is lol
Yeeeha! New video!
Please recommend one filter to start with (2inch).
I see many types like hydrogen alpha, o3, uhc and other
Thanks
I guess u can not really say there is the ultimate filter to start with. First off all if u have no filter yet a Broadband filter is defintily the way to go. Most of the filter come in 1,25" and 2" versions. If u got a filter like this and want to go further into the filter game with some view for later I would say a H- Alpha Filter is the best choice. I recently had the same question in the room. I already got the Astronomik Clip in Filter CLS CCD for my DSLR. Which is a good choice for the start in my opinion. In advance u have to think will u buy a mono camera eventually or questions like that. If u are looking forward or even own a mono camera a duo or even quad band filter would be considered useless. Therefore the choice could be an H-Alpha filter, because the majority of nebulas emit light in this wavelenght. In general if u want to get ride of lightpollusion: Broadband and Narrowband filters will help u out. To get RGB Images u will definetly need a Broadband in firstplaces like the Baader Mond and Skyglow, the CLS with or without CDD or the UHC that u brought up. Narrowband can allways add a a layer on Top of an RGB-image like HaRGB. You can also go for a false color Image with Ha and OIII or even SII as 3 filters. I think Dylan O'Donnell made a list about different options with narrowband filter imaging combinations. In your case i am not able to judge there is no perfect answer to it with the information u gave me. ALSO this is my point of view so do not trust everything i told u. For the beginning a Broadband filter. If u want to dive into it: Narrowbandfilters (Ha,OIII,SII) BUT always look up the filters u buy some could create negative effects in your images.
I hope i could help
Greetings Sören Göhler
PS: Please ignore if i missspelled anything. You could give me an advice then i correct it. (I am not a native speaker)
@@Soeren_Goehler thank you for the detailed response 🌹
I use dslr with Tamron 70-200 and Sigma 150-600mm and explore scientific ed80. I don't think I will use ccd camera soon. And I mainly shoot In dark areas so I don't need filter for light pollution.
Is it OK to use only hydrogen alpha fikter? Because I see most nebulas are rich in hydrogen alpha.
And can I take photos with ha and o3 filter? Let's say 2 hours for each and then stack them together? Thanks again
I had a little bit of sticker shock with that Triad Ultra filter. Over $1000 USD. And here I thought $300 for a filter was a lot :)
I like the way you teach this hobby but if you can go a little bit slower on the mouse we can fellow more accurately, thank you Travor you are the wizard God bless you and clear sky.
Trevor I love your content and astrophotography but I can’t make it through your latest videos due to the low frame rate.
Why do you end up with an 8 bit image after stacking? That's a lot of good data you've lost there, stacking is a good way to get an enormous bit depth as a base for postprocessing. The information you've lost by stacking into 8 bit doesn't come back by simply converting back to 16bit.
Would it be dumb to get an H-alpha or O-III filter for visual use through an 8" Dobsonian? Im in a bortle 4-4.5 zone and i really want to see that damn IC434 hehe.
The filters do not transmit all of the light even within the pass bands. The charts Trevor are showing show relative not absolute transmission. These filters rely on the camera taking long exposures to gather enough light while the eye is limited to the equivalent of around 10 FPS. Also remember Ha emission is in the near infra red so you are not going to visually see much of this light. Bottom line narrow band filters cut out a lot of the available light so are probably a liability for most all targets visually.
@@RobB_VK6ES thanks for your input. Ill gather some more opinions over at stargazerslounge or and cloudynights and decide to waste or to not waste my money. Man its really unfair that the human eye is so fuggin bad at seeing the wavelenghts of the most beautiful Nebulae...
The standard filter to see the Horsehead is the H-Beta filter. I've used a few different brands, but Lumicon has been the best performer for me. With 8", you will need exceptionally dark skies -- probably around 21.5 or darker on the SQM. Buying a H-beta filter can be useful to have in the toolbox. Dave Knisely on Cloudynights has a couple lists for H-beta objects so that could potentially justify the purchase. In general, I find you need 12" (or larger) for reliable sightings. There are also ideal exit pupil requirements, but I'll just say you should shoot for about 60-75x magnification.
@@bad_metaphor oh wow, 21.5 is easy here. Its not often but i do get 21.6-21.9 bortle 3-4.5 (my bortle is changing depending on how many streetlights are working at once haha) once in a while according to clear outside and good to stargaze
Higher magnification?
Imo, that just makes dim targets even harder to see. Anyways, the lowest usable magnification for an 8" skywatcher is 48x right? It seems to me that its still a little much.
I tried around 25 times so far and failed to see it everytime. Even with fully dark adapted eyes... IC 434 Is a real challenge to see.
@@bad_metaphor Welp, im back 4 years later to report my results.
If anyone else is reading this: Do *not* waste your money on an H-Beta filter.
Having finally seen IC434 through my 8 inch just 3.5 months ago, it is unbelievable how dim it really is. Adding the H-Beta filter just made every way harder, not only on IC434 but also on M43, IC5146, IC417 and NGC1499. No matter if with or without any Telescope, the filter made it worse. I tried the Lumicon, Astronomic, Explore Scientific and Omegon H-Beta filters, luckily being able to send all of them back. The filters i can very much recommend are: StarGuy UHC and Baader UHC-S. Those two are, imo, the best filters for visual.
I wanna see an experiment : Use mono-dedicated filters on color cameras
A wopping 1000 usd for a filter.....uhhhh need to talk to my CFO ;)
12:44 MOTIVATION!
Any tips for untracked astrophotography?
Deepsky through a non tracking Telescope? Yes, possible.
Push the longest exposure time possible.
Use a big aperture (8" or more if possible)
Use the highest ISO if your exposures are under 1 second. I find 1sec ISO25600 works for the Nikon D3400.
Let your camera cool between shots.
Have multiple batteries because the high ISO will shred them
Take LOTS and LOTS of frames. 250-500 lightframes would be a good start for M42 or M81/M82.
(yes its easy to get M82 with a 1sec exposure, ive done it multiple times through an 8" stock dobsonian with a d3400 at prime focus)
Youre dealing with extreme noise, plan in around 100-200 darkframes.
Flatframes only if you use a small refractor.
I started with no tracking 300mm f4 lens. At that power I could get decent results at a Max 3.2 sec exposure.
You need to shoot a ton of exposures, but I got a decent result with m31 Andromeda Galaxy, stacking 40 frames for a 2 minute total
exposure. Not mind blowing but cool. You could stack hundreds but it does take awhile to stack.
If you go wider lens for milky way, or constellations you can get up to 10 secs with minimal star trails. If your wide lens has a larger aperture like 2.8 then you can really get impressive results. With out tracking you do need to move and reframe the object after about 10 frames or so. Look up Forest Tanaka's video here on TH-cam: Astro photography without a star tracker.
Also start saving up for a Sky Watched Star Adventurers about $500.00 ($390 US). I just got one and it is so easy to use, I am getting good 2 minute frames and my latest m31 has got me excited to do more. Good luck, and feel free to ask questions
@@joeshmoe7967 Thanks!!
Love u!
Much enjoy:)
Why is your video at 15 fps?
Most clear skies are on full moon time
That triad filter costs 1000 bucks!!
OUCH!
only people who get stuff for free to use can use them
I find it frustrating when I follow your steps but my Photoshop doesn't behave the same as yours.
You go too fast! Please take time to show exactly what menu selections you make and any special options selected if applicable.
$1075 add to cart for a filter? No way, sir. Buy a monochrome ASI 1600mmc with ZWO narrowband filters instead, enjoy a new camera with better resolution for the same price (of a filter :-) and get similar results
Mmmh, on the Quad, probably. I have the STC duo though which is a lot cheaper. Well still 300 bucks he! but I don't regret it. I'd be interested to see the same target shot with each of these filters. I suspect the difference would be tiny.
i thought my gpu broke
Nice Video, always a pleasure to watch you Trevor.
P.S. i send you a Message via Facebook about a Canon Kamera you might be searching for.
You are untrackable to us new guys, you are hopping around way too fast.