Shoot WIDER and FASTER (Starizona APEX ED Reducer)

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  • เผยแพร่เมื่อ 2 พ.ย. 2024

ความคิดเห็น • 117

  • @AstroBackyard
    @AstroBackyard  4 ปีที่แล้ว +35

    I wanted to return to my roots with a BANGER backyard video for you guys... but the weather got to me. I'll be bringing the fire in the next one guys. Clear skies.

    • @guattodaddo
      @guattodaddo 4 ปีที่แล้ว

      Hey Trevor how things are going with the super telescope F11 for distant galaxies? The big "tube" you made a video on some time ago? Clear skies!

  • @Astro-George
    @Astro-George 4 ปีที่แล้ว +8

    Love how the clouds softened the image to give it a dreamy feel. I also am really impressed by the reducer flattener pushing the F-Stop so low.

  • @DylanODonnell
    @DylanODonnell 4 ปีที่แล้ว +50

    Do you guys even need cooled cameras? Signed, Australia 🇦🇺

    • @mellowhippo
      @mellowhippo 4 ปีที่แล้ว +2

      LOL. I'm at the relatively the same latitude as Trevor, just further west. I actually saw SGP try to warm the camera up last time I was out (it was a frosty -17).

    • @ebrahemmh
      @ebrahemmh 4 ปีที่แล้ว +5

      Are you really a flat earther 😅😜 that's what chuck's say

    • @DylanODonnell
      @DylanODonnell 4 ปีที่แล้ว +4

      Dr. Ebrahem Habibeh haha god damn chuckers!

    • @Max6785
      @Max6785 4 ปีที่แล้ว +2

      My favorite part about shooting this time of year is when you go to pack the whole rig in without gloves on and your hands start to freeze to the tripod and mount head.

    • @olivierrethore9097
      @olivierrethore9097 4 ปีที่แล้ว +1

      Yes Dylan, we have to cool but we don't have any bugs ... at least until last year. This year, we have had mosquitoes all winter in the south of France: times are changing.

  • @alllogo
    @alllogo 4 ปีที่แล้ว +6

    Hey Trevor! I wanted to let you know that your videos have inspired me to go to the Cherry springs star party this year! I have already made my reservations and I look forward to not only meeting you, but using my new 8 inch dobsonian!!!!!!

    • @AstroBackyard
      @AstroBackyard  4 ปีที่แล้ว +2

      Very cool Jeff! I hope to see you there :)

  • @Thomas.Teichroeb
    @Thomas.Teichroeb 4 ปีที่แล้ว +2

    I really like that you had the time of day and the temperature outside. Like most Canadians, we like talking/knowing about the weather. Great video!

  • @TexasRangersWSChamps
    @TexasRangersWSChamps 2 ปีที่แล้ว

    Thank you for posting this video...
    the price of the Starizona is double of some brands but your video and user comments have sold me on the quality of this focal reducer.
    im ordering one today from High point..

  • @coriscotupi
    @coriscotupi 4 ปีที่แล้ว +1

    Very cool (pun unintended) video.
    Here's a suggestion for a possible video theme: *"Everything you wanted to know about guide scopes/guide cameras for astro-photography",* the need for those (and how to actually do it) as opposed to using the mount's tracking alone, etc.

  • @theheavensdeclareastro
    @theheavensdeclareastro 4 ปีที่แล้ว +5

    Love your videos Trevor! Always a highlight of my week.

  • @RaysAstrophotography
    @RaysAstrophotography 4 ปีที่แล้ว +1

    A good reducer on a refractor makes a world of difference. I love Starizona products, they are a bit on the expensive side including Hyperstar, but gives you the versatility!

  • @shantg4037
    @shantg4037 4 ปีที่แล้ว +1

    You have the best outros in the field. Great work!

  • @seanmolony-redstickastro238
    @seanmolony-redstickastro238 4 ปีที่แล้ว +1

    Really cool. Great job Trevor

  • @AndrewKingcampingfishingNC
    @AndrewKingcampingfishingNC 4 ปีที่แล้ว

    As always Trevor a fantastic result in extreme conditions. Nice work

  • @Astrolavista
    @Astrolavista 4 ปีที่แล้ว

    Removing the reducer reminds me of how they defuse nuclear warheads in the movies! seriously though great video, you rescued the audio issue with editing nicely, the final image was great and I loved the sound track you used for it. Audio is important on so many levels :)

  • @JosephOlar
    @JosephOlar 4 ปีที่แล้ว +1

    I'm more impressed about the amount of time you deicate to setup the telescope.
    It must take a bit of time as making sure that it 100 % balanced.
    So that the tracker will follow the star that you had it set to track with no problem.
    The entire setup is really something else.
    Cheers

  • @stormingbarney4498
    @stormingbarney4498 4 ปีที่แล้ว +1

    Great video - can’t wait for my ASI 533 MC Pro to arrive.

  • @triangulumpubg6295
    @triangulumpubg6295 4 ปีที่แล้ว +2

    Who imaged that object will know how hard it is. The dense star field makes it pretty hard to edit.
    Nice image Trevor

  • @christopherdeaver5372
    @christopherdeaver5372 4 ปีที่แล้ว +1

    Very professional video. I like it when you are serious.

  • @taavilez
    @taavilez 4 ปีที่แล้ว +5

    First off great video! Love the Starizona crew. But technically, a reducer doesn’t increase the number of photons collected. Radiometrically speaking the number of photons collected is proportional to the area of the entrance pupil. Changing the focal length with a fixed aperture increases the energy density of the focused spot. But don’t take my comment wrong, I am a noob in this hobby still, and have learned a ton from watching your content! I just happen to be a nit picky optical engineer.

    • @johnadastra1754
      @johnadastra1754 4 ปีที่แล้ว +1

      Smaller f ratios = faster optics = less time collecting good data

    • @michapacholak9559
      @michapacholak9559 4 ปีที่แล้ว +2

      You are absolutelly right. Any reducer can't "speed up" your optics when the aperture is fixed. The only way to decrese exp time having same result is to enlarge aperture. Using such reducer you can only expand FOV.

    • @johnadastra1754
      @johnadastra1754 4 ปีที่แล้ว +1

      Not sure what you're talking about Michal. This is exactly why focal reducers are made and why people buy them. People with ultra big scopes aren't shooting super fast frames.

    • @michapacholak9559
      @michapacholak9559 4 ปีที่แล้ว +2

      @@johnadastra1754 Then these people are wrong and throw away their money. It is true that the Focus ratio decreases, but with the same aperture it does not affect the exposure time. It is true that the number of received photons increases, but from a larger area then the density of photons on the picture will be the same and the signal-to-noise ratio will not increase and details will leave on the same level. Let's assume theoretically that you can buy any reducer, let's say x0.1. In that case, are you able to shorten the exposure time to a few seconds to get a satisfactory effect? You will cover a large part of the sky, but with the shortened exposure time the image will be worse.

    • @taavilez
      @taavilez 4 ปีที่แล้ว +2

      A focal reducer decreases the amount of exposure time by increasing the irradiance at the detector, w/m^2, not by increasing the amount of collected photons (watts). Think of the aperture size as the size of bucket you are using to collect photons and the focal ratio of the scope (inversely proportional to the numerical aperture) is related to the spicket you are trying to force those photons through. The detector is another bucket which fills up at a rate proportional to the pressure. And I have officially carried this analogy too far. A reducer definitely reduces exposure time, just not because more photons were collected.

  • @aemyttyastro
    @aemyttyastro 4 ปีที่แล้ว +2

    Great picture Trevor! Have you heard of the 2020 Astronomy Photographer of the year? And if you have, did you enter it?(the competition closes March 6 12pm GMT)

  • @NG-VQ37VHR
    @NG-VQ37VHR 4 ปีที่แล้ว

    Finally astromodified my t3i and got a .85x reducer in yesterday. Can’t wait for clear weather this Thursday night. Perfect video to get me excited about it. 👍🏻 I’m hoping to get a good shot of the Horsehead Nebula at 510mm or 600mm(haven’t decided yet)with the newly modded t3i.

  • @frackcenturion
    @frackcenturion 4 ปีที่แล้ว +1

    Fantastic information Trevor, great work 👍

  • @azcharlie2009
    @azcharlie2009 4 ปีที่แล้ว

    Your image turned out pretty well! It's amazing what lowering the focal ratio can do. I use the hyperstar on my 1100HD. At F/2 it does wonders.

  • @NautilusGuitars
    @NautilusGuitars 4 ปีที่แล้ว

    Starizona APEX ED Reducer; The Viagra of backyard astrophotography! Truly a banger of an episode! :-)

  • @AstroQuest1
    @AstroQuest1 4 ปีที่แล้ว +1

    Well done as always and good information Trevor. I have been using a reducer or flattener/reducer for more than four years now and like you, love it! However, I just purchased a flattener alone so I can zero in on the smaller targets during galaxy season. It will be interesting to see the difference as I lose the f-ratio speed (F/5.6 to F/7) but gain on resolution.

  • @CharlieBravo157
    @CharlieBravo157 4 ปีที่แล้ว +3

    You should do a video on Dragonfly Arrays, this is something I can't find much material on. Is something like it possible for amateurs?

    • @sneakerset
      @sneakerset 4 ปีที่แล้ว

      The Dragonfly is cutting edge science on the cheap. Last time I looked, the array team was imaging at 31 mag. Their sponsorship(s) enabled a price break (around $12K) for the 400mm f/2.8 L IS / STF-8300 M combination. Allison Merritt (yale/edu.) has an interesting abstract on this topic. The early versions of Dragonfly bear a resemblance to the mount design of a Calif.-based narrow band imager/researcher.

  • @jeffreymore6799
    @jeffreymore6799 4 ปีที่แล้ว +1

    Been working on just getting a telescope for starting out. Trying to save for one that’s at least has the eight inch aperture. Got a long way to go before I’ll get the quality in your work but I enjoy viewing for now.

  • @sisiamigomio
    @sisiamigomio 4 ปีที่แล้ว +1

    Hey @astrobackyard the temporary satellite of Earth is calculated to pass by the Moon August this year. It's name is 2020 CD3 and it would be really cool if you could make a photoshoot of it's last journey around Earth. Please do this it would be so awesome. Also sorry for bad English.

  • @Brendenowits
    @Brendenowits 4 ปีที่แล้ว +1

    Stunning as usual!

  • @wesleydonnelly2141
    @wesleydonnelly2141 4 ปีที่แล้ว

    From this day forward, i call this object "The Heart & Lung Nebulae". I like this name i've given it! What does everyone else think ?
    Great vid Trevor! I just noticed, your SUBS gone up by 12'000+ in a matter of weeks!?? Amazing my friend! Well Done!
    Wes, Liverpool, England. ( Bortle 8 )

  • @mellowhippo
    @mellowhippo 4 ปีที่แล้ว

    I'm amazed you got your hands on the APEX-L, they don't look to be available until 2nd quarter of this year. I am taking delivery of the APEX-S tomorrow and plan to use it on an Esprit 80ED for a ripping fast f/3.2! Also getting the ASI533MC-P, I really like the square format, low dark noise, and no amp glow.

    • @BSVGenius
      @BSVGenius 4 ปีที่แล้ว

      mellowhippo check out CCD suitability calculator to see if a reducer will work.

    • @mellowhippo
      @mellowhippo 4 ปีที่แล้ว

      @@BSVGenius Already did. Slight undersampling is acceptable, and I drizzle anyway.

  • @marcosastrophotography100
    @marcosastrophotography100 4 ปีที่แล้ว

    Hi Trevor, thanks for another great video. I have exactly the same setup (Esprit 100 on an EQ6 R Pro mount). I am really thinking about to buy the Apex reducer and your video is very helpfull for my decission. Thank you so much. Best wishes from Germany and clear sky 🙂🔭✨ Marco

  • @satyajitbhadraroy7723
    @satyajitbhadraroy7723 2 ปีที่แล้ว

    Great video.. 👏👏
    One stupid question.. do we need to use a field flattener and/or coma corrector to use focal reducers with f4 or faster newt telescopes ?

  • @reddog1972x
    @reddog1972x 4 ปีที่แล้ว

    Great video again bro - funny, I was just talking to Steve at Starizona yesterday about this FF/FR in the "S" version. I think i'm replacing my Stellarvue 0.8x FF/FRs on my double stack with two of these Apex 0.65x's to bring my SV70Ts down to F/3.9. I've heard good things from friends who are already using this nifty little product!

    • @jamesgoodall3818
      @jamesgoodall3818 2 ปีที่แล้ว

      Hey Adam, that's the same Stellarvue scope I have (SV70T). I was wondering about trying the Apex .65 reducer/flattener... Have you got that setup and have a report about star shape, star size, vignetting etc? I'm not overly delighted with the dedicated Stellarvue 0.8x FF/FR...

  • @AmatureAstronomer
    @AmatureAstronomer 5 หลายเดือนก่อน

    Mighty neat!

  • @derrickgeiser7534
    @derrickgeiser7534 4 ปีที่แล้ว

    This is so cool. Your picture looks soo much better than the one I took last night of Orion. Although I was using a manual Dobsonian and a Samsung S8...so I get what I get.

  • @danielrogers5641
    @danielrogers5641 ปีที่แล้ว

    I love the hint of Zelda music in some of the songs in these videos lol

  • @AndrewKingcampingfishingNC
    @AndrewKingcampingfishingNC 4 ปีที่แล้ว

    Wondered why you don't use (or perhaps you do?) team viewer and Stellarium with the RS232 / USB cable set up to remotely control your scope once the focus and polar alignment are done, from the comfort of your garage?

  • @chargersina
    @chargersina 4 ปีที่แล้ว

    You need a small roll off roof Observatory big time. Best wishes for your automated observatory of the future.

  • @GalaxyArtMedia
    @GalaxyArtMedia 4 ปีที่แล้ว +1

    Hi Trevor. Great video. Do you know if this reducer is good for Skywatcher Ed80/600 telescope? I am using the Skywatcher reducer/corrector 0.85x, but i would like to have another one that could reduce the focal length even more. I would like to use Stellarium on my TH-cam videos also, do you know if it safe to use for youtube? Let's say if you want to monetize the video. I did some reading about the license, but i did not manage to find enough information.

    • @AstroFarsography
      @AstroFarsography 4 ปีที่แล้ว +1

      Stellarium is fine to include in your videos, you won't get a strike or claim on it :) apparently the RF is good for the Evostar 80 also. Was looking at getting one for my Evostar also.

    • @AstroFarsography
      @AstroFarsography 4 ปีที่แล้ว +1

      @@GalaxyArtMedia Trevor probably gets so many comments now that it would take up a substantial amount of time to reply to all of them really. I try my best to reply to all my comments also but sometimes it can take too much time! Clear skies to you also

  • @ColinDane
    @ColinDane 4 ปีที่แล้ว

    Focal reducers are sweet. I still need to get me a better one, but even my 0.85x focal reduction is already very useful. Still have a few other items on my wishlist before I get to that one though...

  • @Gabriel-hh1pw
    @Gabriel-hh1pw 4 ปีที่แล้ว

    As always nice video. Thanks for explaining this! It's so useful :D

  • @iandobbin8068
    @iandobbin8068 4 ปีที่แล้ว +1

    Great video 👍 Waiting on delivery of my 533, but could be a while due to the virus. Great effort in those conditions, or are you used to it. 😃

  • @Kev376
    @Kev376 3 ปีที่แล้ว

    Ever thought about using the c6 hyperstar v4? 300mm focal length, F 1.9! supports 28mm sensor. It's insane.

  • @sathyanarayanansridhar3144
    @sathyanarayanansridhar3144 4 ปีที่แล้ว

    Hey Trevor. How about a video on Mirrorless camera astrophotography? Is it good? Are there enough support gears, adaptars and accessories out there to make this possible?

  • @trainingwithlions
    @trainingwithlions 4 ปีที่แล้ว

    Awesome setup. What kind of filter holder is that?

  • @eagerzero9
    @eagerzero9 4 ปีที่แล้ว

    Great content Trevor! Is the filter drawer you are using from a Hyperstar setup?

  • @humbertolopez5631
    @humbertolopez5631 3 ปีที่แล้ว

    I have a Celestron - NexStar 8SE. celestron f6.3 focal reducer and ZWO ASI183MC Pro 20.18 MP CMOS Color Astronomy Camera but i have problems with '' backfocus'' i can not get nothing i don't have a right pictures with my camara...i'll tried every thing ....but nothing i only have just a littler point on my tablet...could you help me about it? /////thanks

  • @michaelmurphy5029
    @michaelmurphy5029 4 ปีที่แล้ว +2

    Wow, you are a trooper sacrificing your comfort zone for the love of astronomy in snow. Like your videos, and someday I hope you'll make a permanent observatory showing us how you would do it!

    • @Astrolavista
      @Astrolavista 4 ปีที่แล้ว +1

      This is a good point, minus 14 is no joke! I'm surprised he hasn't built a RoR at least but I know he's only fairly recently moved. Maybe he will?

  • @PlanetaryDefenseFoundation
    @PlanetaryDefenseFoundation 3 ปีที่แล้ว

    i came for the music - Nice :)

  • @GarnettLeary
    @GarnettLeary 4 ปีที่แล้ว

    Do you notice any degradation in image quality as opposed to without the reducer? I would imagine a slight softening. That Canon 1.4 you held up is by far the best reducer I’ve used for any device. It’s big brother, the x2, is horrible.

  • @jeramiescott3364
    @jeramiescott3364 4 ปีที่แล้ว

    Any experience with Apertura telescopes? I'm thinking of the 60mm Apo for my lightweight Star Adventurer setup.

  • @MichalJuul
    @MichalJuul 4 ปีที่แล้ว

    Thanks for another great video with some really good information
    How could you not use ASIAIR?

  • @davejenkins8524
    @davejenkins8524 4 ปีที่แล้ว +1

    Why is there before photo? Wider and Faster than what? I understand how they work. but
    without something to compare to. it is not much help

  • @mpk2707
    @mpk2707 4 ปีที่แล้ว

    Trevor, I would be freaking out if I had those tall tree's in my backyard. Chain saw massacre is my first thought.

  • @andreavocino
    @andreavocino 3 ปีที่แล้ว

    Would that reducer work on the Skywatcher Evostar Pro 80ED?

  • @joecooksey4331
    @joecooksey4331 4 ปีที่แล้ว +1

    This stuff is like science porn.... I'm hooked!

  • @robdille3130
    @robdille3130 4 ปีที่แล้ว

    Very cool

  • @robertfield4103
    @robertfield4103 4 ปีที่แล้ว

    Great image. Curious to know the expanse of the nebula (light years). Anyone?

  • @tykexblankz1783
    @tykexblankz1783 4 ปีที่แล้ว

    Big fan

  • @zveck06
    @zveck06 4 ปีที่แล้ว +1

    Wow -15, won't have to cool the camera!

  • @euphonia001
    @euphonia001 4 ปีที่แล้ว

    MC294 or 533? Which one do you prefer better?

    • @xmj6830
      @xmj6830 4 ปีที่แล้ว

      I actually wonder the same because for 100 bucks more you get quite a significant bigger sensor, bigger pixel size and a bit more as well. Then you wouldn't need a reducer...

  • @saahilsinha5558
    @saahilsinha5558 4 ปีที่แล้ว

    Hey Trevor! I have a question. At first I was looking at getting the Z61, but I stumbled upon the AT60ED from Astro-Tech. It seems like basically the same scope, but a whole lot cheaper. Any thoughts?

    • @humwhatever185
      @humwhatever185 4 ปีที่แล้ว

      Idk anything but check the optics : the first one probably has better optics than the second one. Otherwise idk, good luck and clear skies

    • @saahilsinha5558
      @saahilsinha5558 4 ปีที่แล้ว

      @@humwhatever185 nope, they are both FPL-53 doublets

    • @humwhatever185
      @humwhatever185 4 ปีที่แล้ว

      @@saahilsinha5558 okay well idk then, im a beginner 😅. Fpl 53 is really good anyways. Im going to quickly check for you

    • @saahilsinha5558
      @saahilsinha5558 4 ปีที่แล้ว

      Hum Whatever sure, thanks

    • @humwhatever185
      @humwhatever185 4 ปีที่แล้ว

      @@saahilsinha5558 well i haven't found any difference, even on forums, so i guess its up to you. I think the FF on the WO is an other 192$, so maybe the 60ed is a better choice in that regards... hope this helps !

  • @445Navigator
    @445Navigator 4 ปีที่แล้ว

    I see...
    ...an observatory in your future :)
    Nice image btw.

  • @xe1zlgg
    @xe1zlgg 4 ปีที่แล้ว

    Good approach but not the best.. a F2.8 high quality 200mm lens on an aps-c sensor would take that hole nebula at only 30 sec exposures... of course do a lot of them and apply median on stacking.

  • @joecooksey4331
    @joecooksey4331 4 ปีที่แล้ว +1

    Damn good job.... F up or not.

  • @mertaydin820
    @mertaydin820 4 ปีที่แล้ว

    I love your content brother x

  • @alanc2972
    @alanc2972 4 ปีที่แล้ว

    I just recently bought the CCDT67 telecompressor. I haven’t gotten to use it yet though because of all the friggen wind!
    I’ll take Canada’s temperature over Wyoming wind any day of the week and twice on Sundays

  • @ozzielfc1568
    @ozzielfc1568 4 ปีที่แล้ว +2

    think you need some coffee Trevor....Sirius in Orion??

    • @humwhatever185
      @humwhatever185 4 ปีที่แล้ว

      I guess spending that much time without sleeping affects the brain... they re quite close though !

    • @Astrolavista
      @Astrolavista 4 ปีที่แล้ว +1

      I'm not sure I'd be able to string a sentence together at -14 lol

    • @humwhatever185
      @humwhatever185 4 ปีที่แล้ว +1

      @@Astrolavista i dont have a tracking mount for now (ill get a cgem saturday) so i decided to hand track during a clear night. It was quite warm at the beginning so it was nice. After i had polar aligned, it got to maybe -5 C, i still managed to get 9 mins of data though haha. But man do i love this pic now lmao

  • @13squier
    @13squier 4 ปีที่แล้ว +4

    No, reducers do not increase the speed of a telescope. Only increasing the aperture can increase the amount of light collected. An 8" scope collects the same amount of light whether at f/10 or f/1.9. The difference between a telescope and a camera lens is what confuses people- lenses have an iris that changes the aperture of the lens while the focal length remains constant. Telescopes have a constant aperture and reducers (or Barlows) change the focal length. (That's why lenses are given in focal length and telescopes are given in aperture: a 60mm lens at f/6 is a lot different from a 60mm f/6 refractor.) When you get into crop factor and speed boosters you're only talking concepts relative to daylight photography such as depth of field. (Speed boosters are popular with Four Thirds cameras because the 2x crop factor has twice the depth of field of full frame- but this is irrelevant to astrophotography.) The ONLY way a telescope can be "faster" is with a larger aperture and constant focal length- changing the focal length at the same aperture only changes the field of view.

    • @ebrahemmh
      @ebrahemmh 4 ปีที่แล้ว +1

      Reducer change both focal length and f ratio

  • @joecooksey4331
    @joecooksey4331 4 ปีที่แล้ว +2

    All this "F" talk makes me think Trevor needs to find Ashley. LOL Hell, it's Canada you have to keep her warm.

  • @alanconnors8881
    @alanconnors8881 4 ปีที่แล้ว

    Maybe someday I'll stop being amazed. Probably not.

  •  4 ปีที่แล้ว

    Good video! Keep it up! Would you like to be TH-cam friends? :)

  • @netherworld4467
    @netherworld4467 4 ปีที่แล้ว

    .

  • @tykexblankz1783
    @tykexblankz1783 4 ปีที่แล้ว

    First