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Comparing Optolong Dualband Light Pollution Filters on the Crescent Nebula
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- เผยแพร่เมื่อ 14 ส.ค. 2024
- Using filters will enhance your views of Deep Space objects. Recently, Dualband filters have been introduced for use on One-Shot-Color astronomy cameras. So which ones are the better ones and which type of target do they favor?
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Chapters
00:00 Intro
01:31: Outline
02:50: Workflow
11:50 Filter Comparisons
18:57: Remarks
'Garden of colour' is the best description ever of the Sagi arm of the Mily Way!
Thank you, Peter. Well, it certainly contains so many colors, just like my garden, so I just couldn't refuse to describe it that way.
Thank you for watching my video
Great video Par. That clearly demonstrated the difference a filter can make. Massive differences. Clear skies
Stunning garden - I love my Optolong Ultimate - does a great job of nebulosity.
Thanks, Peter. Ya gotta love those filters
Great video Pat! Been watching the multiple storms down your way. Now you get clear skies and bright moons. That's the way it goes. We've got smoke for days here near Toronto.
Nice results with the L Ultimate filter! Thanks for doing this comparison! Take care!
Thank you for your comments. That smoke did make it down to Savannah a couple of weeks ago but it never mixed down to the surface but was passing through a mid altitude levels. I see another round of smoke just to our north again. Well, my sky is clear, which means the moon is waxing gibbous ... ha
Garden looks Awesome Pat! Great info on the filters and Bandpasses. Just been hot and dry here, but I don't want rain!! CS
Hi Jason. Thanks.
I just love these dual narrow band filters. They add so much joy in astrophotography. I am beginning to wonder if they will be competing with the monochrome cameras?
Your dry heat at least gives way to some decent 'Seeing' conditions. But when your monsoon winds develop, I will bet that humidity will increase. I have had beneficial rains and somewhat mild temperatures in the garden and as you can see, the dahlias have responded well. It is now heating up and I just hope they don't shrivel up too much.
Say hi to Isaac for me.
Thank you for the comparison! Coincidentally I began imaging this nebula for the first time last night using the SVBony SV 220 dual narrowband filter (similar to the L-extreme but I have the L-Pro and really enjoyed seeing the results of both types of filters. Your backyard is truly heavenly! Thank you for your informative videos. Clear skies!
Thank you, Cheryl.
So that SvBony filter is good? that's good to know. Those dahlias give me a lot of joy.
@@HeavenlyBackyardAstronomy I'm having very good results with the SVBony SV 220 filter. Bortle 8/9 backyard, 3 min exposures.
@@cherylmcmurray1397 Good to know. Thanks for the reply
Nice comparison video Pat. And the garden is looking very lush.
Thanks, Logan.
Wow, just had to post to thank you for the info on how to engage the GPU to do the calculations for the StarExterminator and NoiseExterminator plugins for Pixinsight and Photoshop.
I forgot I had set my Deep Sky Stacker software to 2X drizzle, which quadruples the size of the image. So that's part of the reason it took over 4 hours to run StarExterminator on my images. But even set to 1X, it still took over an HOUR fpr a standard 6K X 4K image!
But thanks to this video and you linking me where to find the instructions I was able to get the GPU to perform these tasks now. On my laptop with a modest nVidia GeForce 1050 GTX board it knocked the processing time from over an hour to just 5 to 10 minutes, depending on the image. That's with the large overlap of 50%. With 20% overlap it's just under 3 minutes. On my Desktop with a GTX 2070S it's less than a minute at 50% overlap and 35 seconds with 20% overlap!
This is LIFE changing. I almost bought a new laptop hoping to get better performance. What's ironic, without your insight, I could have dropped $3K on a laptop with a RTX 4070 GPU and not done as well as my 2019 does with the 1050 GPU actually engaged.
Once again, thanks a ton and for all you do for the AP community!
I am very happy for you. This puts more joy back into you quest of astrophotography. I am glad I was able to help.
Outstanding work, Pat.
Thank you, Tom
Excellent comparison of the different filter effects. Nice one Pat! . Dave, London UK.
Thank you, Dave. I am guessing you are not getting much astronomical dark skies at the moment. I get about 6-7 hours of it here at my latitude of 32N this time of the year ... from around 10 PM to 5 AM
@@HeavenlyBackyardAstronomy Correct Pat, about 1/2 to 1 hour of usable total darkness at the moment, then add moon, clouds :). That's why these filters are essential. Its amazing what one can achieve even in these poor conditions. I have a particularly good example of a L-extreme 2 inch filter. I love it.
Hi Pat, thanks for the video. Very interesting. Please continued making great video.
Thank you,
I will
Thanks so much Pat. Being new to the hobby finally an explanation on how filters work and what the graphs represent. Now if I can get clear skies. Still dealing with smoke from the Canadian wild fires. Really bad today.
Hi Perry,
Sorry to hear about that smoke. Well, at least it's around along with the bright moon. Hopefully, the smoke will clear out after the moon reaches full and begins to wane. Do you have any filters?
@HeavenlyBackyardAstronomy Currently just a uv/ir cut filter for my asi224mc on my 8se.
The image with the L-Ultimate is excellent, no comparison to the filter free image. Your Dahlias are magnificent I must plant some of those, my roses are looking good though
Thank you, Clive.
I love those dahlias, however, they really don't like the Savannah heat. I plant them in areas where they DON'T get full sun, else they will burn up. I also mulch them generously. I never have any luck with roses. Those filters sure do make astrophotography more exciting in area of light pollution and nights with bright moonshine.
This was excellent. Many thanks.
Glad you enjoyed it!
Excellent video Pat👍 Great to see the difference between these filters! I love my Optolong filters! I have the LPro and the LExtreme. Wow, that unfiltered shot, what a lot of stars, no nebulosity at all🤣 Great looking garden mate, oh, and love the shirt😀 Clear skies Pat!
Hi ya, Simon.
Thanks. You gotta love those filters. I have your latest video next in line to watch ... hopefully tonight. Thank you for watching mine. BTW, I always enjoy your videos
Hello Pat. Great video
Thanks for the review
Thank you
Excellent comparison and workflow Pat. I recently purchased an L-eNhance filter for my 533MC. Although due to the bad weather in the Caribbean I have only been able to take individual photos of 4 and 5 minutes, the results was incredible. I'm on Bortle 5-6, but I've never captured nebular emissions with such power. Halpha reds are intense. I tried with nebulae like Eta Carinae, NGC 6334, 6357, M8 and M20 and the results almost make me scream with excitement hahaha
Hi Jesus.
That L-eNhance is an awesome filter. I like it better than the Ultimate and the Extreme because it allows some of the hydrogen Beta light to pass through, which is in the blue end of the spectrum. With those targets, I wouldn't doubt awesome results. I am a bit to far north to catch Eta Carinae and am barely are to catch M8 and M20 due to trees to my south.
Thank you for watching my video, and I hope your sky behaves
Patrick
Nice one Pat
Thank you, Doug
Nice video with interesting insights 👍👏👏
Thank you for watching my video. I hope the 'insights' help
Hi Pat,
Very interested to see the filter comparison, as I have the lpro and enhance filters. I use mostly the lpro ( in bortle 5 conditions) and find it very good, will make use of the enhance now after viewing your very excellent video, especially when the moon is about.
Thanks Ray
Hi Ray,
Yes, these new filters greatly improve the ability to view targets in light polluted areas and during bright moon nights. I find it even helps when there are thin clouds passing by, which surprised me.
Nice video pat thanks 👍
Thank you for watching.
Another target you captured in these images that can help assess their quality is the Soap Bubble Nebula -- it's in the upper right and I can barely see it in most of your images, but I think it's best in the L-ulitimate, which is no surprise.
Hmmm, I'll try to find it with my monochrome camera and the HA and O3 filters. Thanks for the tip
@@HeavenlyBackyardAstronomy Besides all that, it's one of my favorite targets. Very delicate. Interestingly it was only discovered in 2007, by an amateur astrophotographer!
Got myself L-Ultimate to go with my 8HD and ASI2600MC pro. I began first with M101 and the supernova really popped out on that one, but the galaxy was underwhelming. I thought my filter was wrong because I thought in 10min exposures and 300 gain I should be getting much more light. Then I pointed at crescent nebula at half exposure and... Like a magic. It was better than I could ever imagine. M101 is a very elusive target for me because of F/10 aperture I use. Considering if it's still worth continuing my little M101 narrowband project. Still too much noise.
The L-Ultimate is great for nebulae but not so for galaxies. The L-Pro is great for galaxies and only decent for nebulae. Thank you for watching my video.
Great job Pat, thanks for sharing. I have a question, were the exposure times the same for all filters and the no filter option?
Thanks for watching my video, Jac.
All the images were at 300 second subframes at a gain of 100 (ZWO ASI 071) excep the No Filter ... I had to lower the gain to 50 as there was too much light pollution coming in.
Another great video Pat with a very scientific experiment. I have the Optolong L Extreme filter that I've very been happy with. Is the ultimate even more narrow?
Thanks, Leon.
It seems to me that the Extreme allows a bit wider bandwith in the O3 and the H-alpha over the Utimate. However, those and the eNhance along with the Pro are awesome filters.
Always appreciate your videos. Just picked up a few more tips on how to use some of the pixinsight tools I haven't been taking advantage of.
But what REALLY blew me away was the performance on the star exterminator process. I have been using the 50% overlap which takes over 3 hours to do a full size image on an ZWO 2600MC, just tested it without the large overlap and still looks like it will take about an hour to complete, you knocked it out in seconds!
I have an Nvidia graphics card on my laptop and did my best to make sure I have it running on pixinisight, but still not getting anything close to what you have. My laptop is from 2019, it's the got the intel i7-9750h processor at 2.6ghz and the Nvidia GTX 1050. Am I missing something on how to get that performance boost.
I was thinking of switching to apple just for this reason, the star exterminator just takes too damn long.
I pick up the technique for connecting my graphic card to Pixinsight through Cuiv, the Lazy Geek. He has a tutorial on how to set up your system. It must be NVidia-type graphics system. My computer is Intel(R) Core(TM) i7-9700K CPU @ 3.60GHz 3.60 GHz running Windows 10. The graphics card is the GeForce RTX 3060,
Here is the link to his tutorial: th-cam.com/video/A3RmR5FWgdY/w-d-xo.html
I hope this helps
Can I please know how long an exposure & gain setting on your camera did you use for the ultimate filter. I recently imaged this on a dark site with the L extreme and it was a disaster. None of the data could be used. My scope used was a 115mm triplet (800mm focal length) / camera an ASi2600MC Pro & filter an Optolong L Enhanced. I did 300s x 30 Subs with a gain set at 101. Please help. Thanks.
Hi Alfred,
Were you able to stack the images? A lot of time after stacking, the stacked image appears black in Photoshop but processing it in PixInsight show color after I perform the autostretch.
Nice! What bortle sky do you have?
Thank you. My bortle value is about 4.5 looking to the ESE - S- SW but high as I look toward Savannah to my NE through the NW. Ican see the Milky Way in the summer months
Is there a reason you use colour calibration instead of SPCC? My understanding is that it essentially replaces it.
I didn't know about SPCC. I will check it out. Thanks for the heads-up.
@HeavenlyBackyardAstronomy It's well worth checking out. Came out recently. It's pretty amazing for colour calibration.
Great images! Seems i have to empty my wallet...
Be aware that the pollen from lilies are poisonous to cats.
Those are some great filters from OSC cameras. Thanks for the heads-up about the pollen. Fortunately, she is rather shy around the lillies. Grizabella is 13 now and is a cuttie