|
Hi James, I would go as low as 800 ISO and I mostly use 1600 and take many more shots. to reduce the noise levels in the final stack.
I have the same type of mount although believe mine is a cheap EQ2 not a 3.
Last night I captured 2 minutes x 19 exposure at 1600 ISO and night before 90 second at ISO 800 and worked well. Unfortunately I cannot post the link to my site as I upgraded the skin and it is not working. I will fix it today and hope show you the result.
I still experience slight drift even after 90 seconds though. They are not the best of mounts for AP.
|