Quote:
Originally Posted by h0ughy
OK well using your table as a guide it's a sixty seconds shot which in poor sky conditions would be equivalent to a five minutes shot at gain 0. So therefore 5min worth would be the same as 30min at f7 roughly or am I not in the ballpark  |
Not quite sure that I understand the question Dave, but for certain, your scope is definitely very fast.
Take for example the mag 21 table at gain 0. Your scope will need a bit over 35 seconds and an f7 scope will need 7 minutes per sub to get to the same result. At f2.2, your scope puts photons into the pixels at about 10x the rate of an f7 scope.