rcheshire
27-01-2012, 08:47 AM
LMC - A test run for the 1000D cooling and filter mods. Came away with a bunch of ideas and improvements that only become evident with use.
Dewpoint was high ~15C - so cooling was set to 17C. It ran well, cooling in a very short time from 24C.
Nothing spectacular. 200mm f/6.3 iso1600 3.5 minutes x 5 bias dark and flat frames. I notice that the RA setting circle sometimes binds the axis on this old mount when starting from the horizontal, hence the elongated stars.
The filter mod has been successful.
Dewpoint was high ~15C - so cooling was set to 17C. It ran well, cooling in a very short time from 24C.
Nothing spectacular. 200mm f/6.3 iso1600 3.5 minutes x 5 bias dark and flat frames. I notice that the RA setting circle sometimes binds the axis on this old mount when starting from the horizontal, hence the elongated stars.
The filter mod has been successful.