[TechnoBill]

Hi All,

I recently got a 40D as well. I have been using it with an LX200 8" SCT and 6.3 reducer. I am very new to Astrophotography.
I have found that Exposure does slightly affect the sensitivity of the Live View but Iso does not. (I pump it through to my laptop and use the EOS utility).

I havent had a chance to play around much yet, but I also hooked the video out from the camera to my TV and live view works through the video feed as well (although there are a couple of display overlays that cannot be turned off). Still, by using a cheap $15 USB vid capture I was able to use video capture programs on my laptop to display live view. This may give us more options as there may be Video capture programs out there that can intergrate the video frames to boost the image.

I guess it depends what you want to use it for. I would like this feture just to help when positionaing the fainter objects, or for multiple people to see an object on screen etc.

Regards
TechnoBill