Canon XSi SetupThis was the first time that I got to use the new Canon XSi for astrophotography. I sold my Canon Digital Rebel (300D) which provided a lot of good photos with previous telescope setups. One thing I really like about the XSi is the EOS Utility that allows for remote imaging with the bulb setting. And, it uses the USB cable that comes with the camera so no need to purchase (or make) a special one. There is an automatic routine that lets you set the number of exposures, intervals, and exposure time and follows through automatically. Focusing used to be a bit difficult in the past but now I have a Bahtinov Focusing Mask. This thing makes focusing incredibly easy and fast! I bought an inexpensive one here at telescopes.com (thanks to a tip from Jeff Turner over at DaltonSkyGazer). I just laid the mask over the end of the ED80 and did a quick exposure with the XSi to see the diffraction pattern. A couple tweaks of the ED80 focusing knob and it was perfect. I hoped that it would show up in live preview, but for some reason it did not. I'll have to figure out how to use live preview for focusing with the mask next time. Once I got the XSi ready to go (focusing, centering of M42, etc.) I got the autoguider going.