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March 23, 2019, 01:49:28 PM


Author Topic: Astrophotography help  (Read 2629 times)

Offline Tjsno

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Astrophotography help
« on: December 25, 2014, 10:17:40 PM »
Hi all,

I was just given a great little gift, a Celestron Nexstar 90 SLT. I really need to know what adaptor kit I need and also advice on shooting via the setup. With the kit will there be vignetteing? Can I view via the lcd screen? I'm not finding a whole heck of a lot of info on this with my telescope or my t2i.

Thanks,
Todd

Offline AndyCivil

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Re: Astrophotography help
« Reply #1 on: December 26, 2014, 07:22:39 PM »
That is an interesting Christmas present, isn't it? I took a look at their site and the adapter they sell is geared to "point and shoot" type cameras, rather than a proper DSLR, so no help there. I do recall on this forum, people talking about a "T Mount" adapter - perhaps the "T" refers to "telescope"?? Anyway, there does seem to be an adapter available that's made by Celestron and is for Canon EOS cameras, so that looks promising, but honestly, I have no idea really. http://www.bhphotovideo.com/c/product/261256-REG/Celestron_93419_T_Mount_SLR_Camera_Adapter.html
If no one comes along with a good answer, I have a friend who might come up with something, but he's not on this forum so I'll have to ask him by email.

Offline Ochotona

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Re: Astrophotography help
« Reply #2 on: December 27, 2014, 09:49:11 AM »
I have a Celestron spitting scope (more suited to terrestrial use like birds and wildlife ) and with a T mount adapter on my T2i I can remove the eye piece from the scope and mount the scope to the T mount.  I'm not sure if that would work with your model of scope. There is vignetting, and I think the scope acts like an f.11, and I actually found I get better results from my 300 mm zoom cropped than I do from the scope set up.

Offline Tjsno

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Re: Astrophotography help
« Reply #3 on: December 27, 2014, 06:55:04 PM »
Thanks for the replies, both of you. I've been researching a lot. I've found one YouTube video so far with the t2i and a different model telescope, but same brand. I've also found this:

Deluxe Telescope Camera Adapter Kit for Canon EOS /Rebel DSLR - 1.25" Variable Eyepiece Projection & Prime Focus https://www.amazon.com/dp/B0053ZJW5G/ref=cm_sw_r_awd_li2Nub1NCK20X

I have seen and heard about the vingetting, but with a good shot it can be cropped out. I agree with terrestrial shooting I use my 300mm lens and it's great, even for moon shots. But I'm looking for more. Saturn, Mars, Venus, etc.

Todd

Offline AndyCivil

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Re: Astrophotography help
« Reply #4 on: December 27, 2014, 08:30:48 PM »
... and I actually found I get better results from my 300 mm zoom cropped than I do from the scope ...

I actually just gave away a telescope for the same reason. It was kind of a toy telescope, but a quality toy; I definitely got a better image from my zoom lens. Your Celestron (Todd) may be better than that.