Yes, consistent temperature is needed for proper reduction. Are you able to use darks for a long period of time or do you renew them periodically? I've kept mine on my ST-10 for over a year and they seem ok, but I haven't done any imaging yet to check it out
. But the new computer is in the observatory and it's talking to the mount; the camera is next if only the pesky low clouds would go away.
Quote:
Originally Posted by RickJ
But in winter the front side can get so cold it drops below the dewpoint and your imaging is cut short. Even at 10C below ambient I've had it frost over on me in a place or two. This leaves a hole in the image. Quite a pain.
|
I often have a lot of dew -- everything gets damp. One night quite a while ago the inside of my diagonal fogged up. Now I use lots of dew heaters, and haven't had any troubles inside the camera (or on the front glass). But I don't get much below 32F here...
--Andy