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Old 18-10-2009, 08:05 PM
dpastern (Dave Pastern)
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Join Date: Jan 2009
Location: Brisbane
Posts: 2,874
2" eyepieces have a theoritical larger field stop, or that's how I understand it. That allows you to have wider fields of view (TFOV), as well as AFOV. 1.25" simply are impossible to offer with such larger AFOV/TFOV views due to the physics of the barrel size.

Dave
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