Quote:
Originally Posted by g__day
Not the edge - a carbon fibre 9.25 - so it holds focus rather well.
A typical 30 minute sub - no processing at all (so you can see how dirty the filter is in spots).
If I set the cooling lower I wonder if I could go up to an hour subs  ? |
Thanks Matt.
The 30 minute sub is interesting. Suggest you experiment and drop the ISO to 200, run some more subs and compare the differences. I believe 200 ISO represents unity gain for your camera.
I am newbie at this and I am struggling trying to get a handle, on the optimum Canon 60D ISO and exposure time settings for different temperatures and seeing conditions.
We should make it easier for ourselves and just buy a cooled CCD camera. As you have the art of guiding mastered all you have to do is set an exposure time.
Cheers and keep us posted on what you discover.
Rob