Debbie, The wider you go, the less accurate tracking has to be, so it is much easier to image with say an 18 - 55mm canon lens than a 2500mm Schmidt. If you get up over 100mm, your tracking needs to be pretty accurate to do any type of long exposure. I shoot with the XSi, it is a fantastic camera especially when modified to shoot Infrared. You really don't need much special equipment for auto-guiding if you already have a decent mount for it. My autoguiding setup consists of a simple meade finder scope and a webcam. Combine this with PHD and you have a very nice setup for autoguiding. http://www.slas.us/gallery2/main.php?g2_itemId=2997 There is a shot of my wide field setup, the XSi has a Nikkor 180mm F2.8 lens on it. Very good for wide field astro work. Best of luck ! David On 9/17/2010 8:29 AM, Debbie wrote:
Great job Joe!
Isn't it true that it is easier to image with shorter focal lengths? I may try piggy-back imaging next year with a Canon Xsi live-view focus camera. At some point I may try PHD autoguiding if I can find a guider that works with Vista 64-bit OS. It seems that there are a lot a technical hoops to jump through when it comes to astrophotography.
Debbie
On Thu Sep 16 23:05 , Joe Bauman<josephmbauman@yahoo.com> sent:
Hope some of you will read my latest blog; hope some will comment on it. Thanks,
Joe
http://www.deseretnews.com/blog/47/10010064/Nightly-news-astronomy-Looking-U...
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