Can digital SLR take astronomy photo?

Question by sel_bos: Can digital SLR take astronomy photo?
Are the exposure time same as film SLR?

Best answer:

Answer by Dr. Sam
Sure. Just set the ISO to a familiar speed. Most default to ISO 200 (some have ISO 100), but may adjust to a higher ISO if you leave it on auto. It sounds like you know what you are doing though, so just check the ISO and go from there.

Orion Telescopes have a great site. Check out for photo accessories to go with telescopes. You will find a couple of “universal adapters” of interest.

There is also a book about astrophotography that might be a good idea for you.

Also, from any page, click on the link for “Learning Center” near the top of the page. Enter “photography” in the search box and you’ll find 22 articles that will help you.

Sky & Telescope Magazine also has a section on astrophotography available on-line at:

Know better? Leave your own answer in the comments!

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2 thoughts on “Can digital SLR take astronomy photo?”

  1. the exposure time on digital slr cameras is completely variable. the Canon EOS 350D (Canons cheapest dSLR) has a shutter speed range of 30 seconds to 1/4000 second, ISO is also variable in the following steps: AUTO(400), 100, 200, 400, 800, 1600

  2. Yes they can and they are perfect for that since you have the two needed ingredients: bulb exposure and variable ISO.

    The third ingredient is a good telescope that can help you see the desired celestial body and that telescope must have a tracking motor which helps you to keep the celestial body you want to take a photo of in focus as it moves in the sky.

    Of course you’ll also need stuff like an adapter to attach your camera to the eyepiece of the telescope, a tripod for a the camera (if you use heavy lenses on the camera) to prevent the camera breaking and a cable release for the camera (for bulb exposures)

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