Thanks Paul and Anthony.
Quote:
Originally Posted by [1ponders]
btw do you always use 100% gain with the DMK?   I haven't had many opportunities to experiment yet, but that much gain in the ol' ToUcam made the image pretty much unusable for me. |
Mostly 100%, yes. Depends on transparency and framerate and the object.
Since Saturn was/is so dim, I almost always used 100% gain and even had to use 1/15s exposure (15fps) to get a full histogram. Jupiter is much brighter and at 15fps I could usee less than 100% gain (sometimes 80% ) but I use 30fps (1/30fps) to get more frames. Gain has to be at 100% to get the histogram as full as possible.
The DMK is very low noise, even at 100% gain. You really can't compare it with the ToUcam. The background is black even in the raw frames.