Tuesday, December 24, 2013

Astrophotography, what telescopes are compatible with Canon Digital Rebel XT?

canon digital camera xt on Canon EOS 350D / Digital Rebel XT 8.0 MP Digital SLR Camera - Black ...
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Aphrodite


I have a Canon Digital Rebel XT and am wanting to start astrophotography.
I am not good with crazy terms, but need to know a good telescope to use.
Anyone know of a few I can check out?



Answer
Well, ..., IT's not just the scope that you should be worried about bur rather the mount. In astrophotography the mount is the most important thing you should consider. Also, you're not going to get an astrophotgraphy "ready" scope for under $1000 USD that's all there is to it. The Orion-EQ computerized goto mount is one of the the cheapest goto mounts that I've seen (http://www.telescope.com/Mounts-Tripods/Equatorial-Mounts-Tripods/Orion-Atlas-EQ-G-Computerized-GoTo-Telescope-Mount/pc/-1/c/2/sc/34/p/24338.uts). That's just the mount and does not include the OTA (Optical Tube Assembly) which could run you another $1000 or so (depending on what you want to do, of course).

If you're looking for an Schimidt-Cassegrain Telescope (SCT), then starting price is $2,599 and that doesn't include the equatorial wedge. So you really need to be thinking as follows:

1) 8" Goto Fork Mounted SCT: 2,599.00: http://www.optcorp.com/product.aspx?pid=1-600-603-979-12961&kw=&st=0
2) Equatorial Wedge: 179.00: http://www.optcorp.com/productList.aspx
3) Deep Sky Imaging Camera with Filter Wheel and autoguider: $1389.85: http://www.telescope.com/control/astrophotography/astrophotography-cameras/orion-starshoot-planetary-imager-and-autoguider. (You already have the cannon rebel XT tis a great astrophotgraphy camera out of the box)
4) 4 Astrophotography filters: 205.95: http://www.telescope.com/control/accessories/telescope-and-eyepiece-filters/1*25-inch-lrgb-astrophotography-telescope-eyepiece-filter-set

So adding it up: 2,599.00 + 179.00 + 1389.85 + 205.95 = $4373.80 * 7.5 tax = ~$4701.84.

So it takes a little dough to get started but it's do able. You might want to consider getting into the visual end of astronomy first and then work your way up to astrophotography. BTW, the prices I've given, though actual, may be less if you already have some of the items so in your case it could be less. Especially since you already own a DLSR, then you don't need to invest in an astronomy camera and will only need an autoguider which on runs about $385 (depending on which one you buy).

You might also want to pick up a copy of one of Robert Reeve's books "Astrophotography for Webcams" or "Astrophotography for DSLR's". His books are full of great tips on how to be successful at astrophotogrpahy.

Watch the following video for specifications on 10" Meade LX200 with an equatorial wedge:

Is there a significant learning different between the Canon Digital Rebel XT and the Canon 40D?




Ms.Matashi


I plan on renting a Canon 40D sometime at the end of this month. Currently I use a Canon Digital Rebel XT. I was wondering is there a big learning difference between the two camera? What is on the 40D that I have to learn that is not on the digital rebel? I plan on shooting in manual and in raw.


Answer
No, I don't think you will have too much trouble finding your way around the 40D. If you know how to use the XT...then the 40D is just a step or two up (updated features, and menu etc).

Check out the 40D video tour in the first link below.
The second link has a number of informative 40D review/tutorial videos from YouTube.
The third link allows you to download (and save) the 40D's Instruction Manual. I suggest you download it...and read it so you get a head start on it's various features and functions...




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