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You can get an adapter for your camera at www.scopestuff.com. When you get there, enter "t-adapter" in the search box and it will take you to the page.
You need a T-threaded mount that matches your camera's lens system, and a T-adapter 2-inch tube that screws into that. This combination allows you to slide your T-adapter-equipped camera directly into your telescope focuser. This turns your telescope into the equivalent of a big telephoto lens.
You need the 2-inch size to avoid vignetting on the DSLR chip (shadows in the corners of your images).
This means you'll also want to be sure your telescope has a 2-inch focuser.
Where you go with a telescope depends on your budget and how often you think you'll be doing this. A DSLR is good for imaging the Moon, pretty bad for imaging the planets (they're too small on the chip), and fair to good for objects like nebulae, star clusters, and galaxies.
The Moon is easy to image with a DSLR even without having a tracking mount. So, a good 8-inch dobsonian would be a great starter scope, and would cost about $350 with shipping.
To image the planets you'll want to use a tracking mount and a webcam. A good scope type for this activity would be an 8-inch SCT.
To image the star clusters, nebulae, and galaxies well requires a bit more aperture, if you can afford it, but it definitely requires a tracking mount, since these objects are dimmer than the Moon and planets and you'll be making exposures that are at least one minute long. You'll probably be making a couple dozen such images and then using software like DeepSky Stacker to add them together to produce very nearly the equivalent of a single, much longer exposure.
However, you'll save yourself a good deal of time, trouble, and money if you read something like Robert Reeves' Digital Astrophotography: Imaging the Universe with a Digital Camera first.
Hope this helps!
Posted 2 months ago.
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