Thank you Mike and Greg for your explanations. I do not mean to change the topic of this thread, but I am curious about this. I feel the FSQ may not be as much slower than the Newton as we may first think, because of some light loss in mirrors and the central obstruction. But 9micron pixels are no doubt much more sensitive that 4.54micron pixels, so I feel your wide-field setup should be faster in getting high SNR.
As for the first light, Iam really impressed again and again how good the optical alignment is out of the box
