As a test I thought I would take a lot of data in RGB of the region of NGC3247.
Exposure details. 25x4 minutes of each of RGB.
Large image here 15MB
http://d1355990.i49.quadrahosting.co...2/NGC3247l.jpg
Note this is 1.5x larger in pixels than the sensor.
I tried to keep the colours etc real not a cartoon version.
Bert