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Old 12-12-2005, 12:55 PM
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Starkler (Geoff)
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Join Date: Sep 2004
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Quote:
Originally Posted by iceman
I was thinking of what widefield eyepiece I might get one day, and the 35mm Pan was an option, but I remember Geoff saying that it'd be no good at f/5 due to the exit pupil being too large?

Has anyone used one in a 10" dob?

The 27mm Pan might be the next best option if the 35mm is no good.
Mike the 27 panoptic is a winner in a 10" f5 dob. I used to own one until I got the 31nag and 24 pan to replace it. I miss the 27 !

The exit pupil on the 35mm will be 7mm, which will result in a milky white sky background in anything than very dark skies. The 5.4mm exit pupil gives a darker sky background which is a lot more pleasant.
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