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Interesting comparison. Of course I would I have thought the first one was the longer.
A might also add various scopes perform differently in high moon. I would not blanket assume all are the same in this regards.
For example my AP Honders Riccardi has the best ability to cut through light pollution of any scope I have ever used. It has lots of baffling and an oversized tube for the size of the mirror (14 inch tube, 12 inch mirror great for thermal currents as they drop off to the side where a fan sucks them out, very clever).
But yes there is no substitute for a dark site most noticeably when you go for the fainter objects. Bright objects are still very accessible from light polluted or moon skies.
I find as long as the scope is not pointing towards or near the moon narrowband with 5nm Astrodons is quite workable. But near the moon nothing saves you until someone comes out with a .5nm Ha filter!
Even then how much of the moonlight has Ha in it?
Greg.
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