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I was taking the stop dimensions for both of those from the respective websites, but again, who knows if they are a truly equivalent measurement.
Regards exit pupil and LP, I live in a relatively dark area, not truly dark sky but hugely better than suburban Melbourne. I live about 6km out of Kilmore, so about 40 away from the urban fringe. I still miss the childhood skies though, we used to live about halfway be tween Echuca and Rochester in country Victoria. Black, black skies and just a hint of a light cone from the towns.
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