How to Attach and Focus a Canon EOS DSLR (APS-C) to the Explore Scientifc David H. Levy Comet Hunter
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- Опубликовано: 23 авг 2024
- In this video I show my method for attaching and focusing a Canon EOS DSLR with APS-C sized sensor to the Explore Scientific David H. Levy Comet Hunter.
Camera mounting equipment I use:
Short Extension Tube (Included with the Comet Hunter)
Orion 2" Zero-Profile Prime Focus Adapter (5308)
Celestron T-Ring for Canon EOS Camera (93419)
This is a simple method that works for Canon EOS DSLR's with APS-C sized sensors. This method may or may not work with full-frame DSLR cameras or other brands of DSLR camera, so attempt at your own risk. The flange to sensor distance on a Canon EOS DSLR is 44mm, and the Celestron T-Ring for Canon EOS is 11mm thick. Other cameras may have a different flange to sensor distance which could use up more of the focus travel on the Comet Hunter.
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Straight forward and simple, always best.. 👍🏼
Mind blown! I've had my Comet Hunter for 8 years and I ldidn't know there were two focuser extensions. Just realized, mine came pre-installed with the long one, and I always thought that it was just a part of the focuser. I would add the short one to get some long focal length eyepieces to focus. I just went and checked and the long one threaded off. I can't tell you what a revelation this is. I can focus my camera!
Nathan and Shelly Donahoe oh man - 8 years of missing out!
Nice job on the video. Its great that you are willing to share what you have learned.
Thanks, I appreciate that.
Thanks I am looking to purchase one of these Comet Hunter scopes so this was very helpful.
Thank you very much for the help!! I have just one question: how do you change de magnification without an ocular?
Great video, will be getting one of these soon to upgrade from my 130 SLT.
Thank you! Great video! Anyone who gives you a thumbs down is drunk.
Very good video, congratulations. What is this telescope focal distance?
Good video
Nice video! Is your focuser shorter than a 2" Crawford focuser? That is what I have on my 8" Newtonian telescope that I built and I can't get it in focus @infinity. I have tried prime focus with the 2" T-adapter and a 2X barlow sized down to 1.25". I am thinking my best fix is to move my primary mirror a little more forward or move up to an astrophotography camera, but I don't want to break the bank. Any suggestions?
Very good video, thank you so much. I am trying to decide if this is the right telescope for me. I am a beginner to astro-photography. This telescope seems like it does a good job of both deep sky and planetary. Do you you think it works well for planetary photography? Do you have example photos of the planets or moon?
I have a canon mirrorless and i'm using a mount adapter EF-EOS R for my DSLR lens. Is this compatible with the mount adapter ?
Hi Slymin, thanks for posting this instructional video. Helps a lot beginners like myself.
What mount do you recommend with this scope, for astrophotography? Do you think the Skywatcher HEQ-5 15kg weight rating will be sufficient?
Thanks a lot.
I think your draw tube is protruding into the light path that far in maybe no extension needed? I use my comet hunter with Asi cam so don't know but I don't like that the draw tube can block a large % of aperture. Thanks for your videos as I probably wouldn't own comet hunter without some good vid's to watch! Nice scope have a good one
Ok. A newbie question. I have a Dobsonian and a Canon camera with all the attachment equipment necessary. As in your video. I am not understanding how I can take advantage of, or emulate the huge telescope epiece collection that I have. What am I missing n my expectations? Thanks!
Hi Slymin I purchased my comet Hunter in October and I love it I have be just visual with it with a 31'mm Hyperion and a Baader Hyperion zoom with and without the matching Barlow I always enjoy watching your vids especially with the comet Hunter and liked this one to Do you think you will do one say with a ccd like the Atik infinity or a Mallincam just for comparison cameras Thanks and keep showing more vids with the CH. Clear skies Jeff
Where do you get those extension tubes? Also my Canon 100D has a video capture function but it wouldn't work saying to connect your lens but i have my Skywatcher Dobsonian connected. Is there a way to activate the video capture function without using a regular Canon lens?
People that have a telescope with a 2 inch eyepiece have plenty of options. I dont suppose they make a low profile for a 1.25 eyepiece?
wait... astro modified which one? H-Alpha or Full Spectrum mod? I'm guessing Full Spectrum do to the body filter right?
Hi Slymin!
I enjoyed your video very much. I have a somewhat related yet unrelated question. I want to mate my DSLR to a 12 inch kaleidoscope so that i can take photos of the light patterns. So i am not seeking to go as far as the moon …yet. But i do have a Canon APSC Camera with a 50mm Macro lens. My question for you is How do i mate the camera with attached lens to the viewing end of the kaleidoscope?? Because the viewing end of the k-scope does not have a standard threaded end that my camera and lens could be adapted to. But i think i could convince the artist who made my scope to design a new scope with the type of ring or adapter that would mTe properly. Vould you help me think out what i would need to do from your perspective. Thanks so much!! Jerry Eisner
Hi I have a Canon 5d mark full frame and I’m looking for my first good telescope for astrophotography that will work with this camera. I’ve seen celestron telescopes for aps-c but which one will work with a full frame? What detail should I look for to know if it will work with my full frame sensor camera? Thank you
Hi Slymin! Love the video. How is your camera modified exactly? You said it was astro modified and with an infrared filter? I’m looking to adjust my camera with some sort of modification(s) so what would you recommend? Maybe a light pollution filter or removal of the current infrared filter?
It is full spectrum modified, so it is open to the entire spectrum of light, so you put a filter on for the application you want to use it for. When imaging I use a ligh pollution filter, and a Hydrogen Alpha filter. If I want to image in infrared, I use my infrared filter.
Surely infrared has a different focus point through a telescope than visible light, I am a professional photographer to trade and I am aware when shooting in infrared focus is at a different point and maybe that is why you find those extensions good for you? Maybe?
Oh yes, IR definitely has a different focal point in a catadioptric telescope, hence why UV/IR cut filters are often used, but the difference in focus isn't drastic.
Hi would this work with the canon EOS 100D ? Im just starting to get into this thankyou
I’m very new to this ! I have a canon m50 but was not available to get it to work like all the menus came up and could see anything any ideas why ?
if i add a camera to the eyepiece of my 8 inch dob will it add alot of weight and make it heavy on one side?
Is there a advantage to using a 2 inch over the 1 1/4 inch adaptor
What happens to the camers contacts when the ring screws on,shorting out etc
Hello . Please help me , I have celestron 127 EQ and canon 750D what I need for to do similar, I want to buy it on ebay and what is called , I need all this parts and dont know names . Sorry for my English
I have a Canon Rebel T6i and have purchased a Vivitar Telephoto lens. Cannot find the function to Release Shutter without lens so that I can take pictures. Instead, my Camera keeps stating that I cannot adjust aperture as it cannot find a lens attached. Can anyone please help? I've been workign for hours trying to fix this and cannot find an answer. Thank you.
Many thanks. Very clear vid. Just a question. Using the Canon aps-c. If you telescope focal length is 500mm. Does the camera increase the focal length by 1.6x ?
I don't believe it does. Telescopes are different in the fact you need the eyepiece for magnification. When you attach a camera using this method it is called prime focusing so you need to align the sensor with the focal plane of the telescope. I hope this information helps and is legit (I am kinda new to astrophotography)
Can I get my Canon EOS rebel t3 modified?
Little help me please. What canged on camera??
Do you know where you can buy this short extension tube?
My camera won't shoot an image or video once I'm all hooked up and focused. Any suggestions? Thanks!
Some cameras you need to go into the settings and “allow the shutter to be released when a lens is not attached”.
@@AstroBlender Thank you i will check into that! Appreciate it
@AstroBlender Im new to this whole thing. Just got my first computerized scope. Exciting times! Hope you are well, Friend!
Thanks for the informative video i hadn't thought of changing the extension tube that came with the telescope. Is it possible to obtain focus with a 1.25 inch nose piece. I would prefer not to upgrade as i already have a light pollution filter 1.25 inches. Would having no extension tube be better? It seems like i am very close to focusing and am unsure if it's a focusing issue or a slight collimation issue..
I just checked and actually the scope was out of collimation. Well see if that improves as looking at the photo on the screen the stars look mostly round but zoomed in reveals nightmareish details.
So your clip in filter is worth twice as much as the camera it's in?
No. My modded SL1 was about $500 total. The CLS-CCD is not that expensive.
I’m confused - you’re trying to minimize the space between the camera and focuser, but then you insert and extension tube
Please explain
I have a Nikon D800 a full frame 35mm. I use a Celestron 8SE and am having difficulties obtaining sharp focus through the camera view finder of live view magnified. While it may look focused in the camera the resulting image is not that sharp. I use a remote once the shaking has stopped. I would like to be able to focus through an eyepiece and then remove the eyepiece and place the camera and have the same focus point. Any way of doing that?
No, the camera sensor and the eyepiece have significantly different focal planes. It sounds like you may benefit from using a motorized focuser on your 8 SE.
@@AstroBlender I do have a motorized focuser. I guess I just need to figure out whether to push the buttons up or down. Because it is going to be the same direction every time. So I can't just use an extension on the eye piece, which I think would get me closer to the focus point of the camera? But maybe then I would not be able to focus the eyepiece. I don't know still learning as I am a rookie.
I made the mistake of buying a Canon xti 400D. No live view. So I can't even see when it's in focus until I take a picture.
i know this is nothing even slightly related to this video, but i’ve had a celestron 127 slt mak for a while now, and when i look at planets, like mars or saturn, (those are which i’ve tried and had the following problem) when the focus knob is turned all the way to the right or all the way to the left there’s like a white blob with a black dot in it, and i have no clue what the hell it is. when the knob is at a point where i think it’s focused, it looks like an orange skittle the size of a breadcrumb in my field of view. do u know what that whole blob thing is??
At a guess, when it's heavily out of focus you're seeing the secondary mirror as a black dot in the middle of the unfocused light.
Where's the lens for magnification???
I am from Australia & my local Telescope dealer contacted , the Canon dealer in the U.S.A, I got a single device that fit on my Canon Camera straight onto my Scope . No T-Rings used.Ill send a Pic, it`s a wonder you yanks can`t get them ,Have a nice day
I can get a great focus with live view and in video, but when I shoot a still image with my Canon t7i it looks blurry, any suggestion?
Try using a remote you should be able to use an app from your phone
Get a bahtinov mask for the scope it will allow you to get perfect focus for your dslr.
Hopefully you have figured it out by now, but if focus is good in video and live view, then sounds like your still image is suffering from 'mirror slap' In live view then video the mirror is already up. Try locking the mirror up first then wait 4 seconds and take a picture.
So you don’t need an eyepiece???
Is there a way to attach your zoom lense on there? Cause the quality with it is insane and it'd be awesome if they had an adapter for that, that then goes into your telescope. Instead of just blindly using the sensor like that exposed
For the moon just use a 500mm lens with a doubler and no telscope needed
Where's the lens???
that would be the Telescope
So, whst you are saying is basically no lens will be used?
a question, why do i only see the reflector on my telescope when i'm using a tring and not jupiter?, i've had this problem since we bought the t ring
I had the same problem and was wondering what the answer is, too.