Thread: Baader Hyperion 31mm Eyepiece for 10" Dob?
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Old 17-09-2022, 10:48 AM
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Boozlefoot
SQM 21.98 mag./arc sec2

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Join Date: Nov 2016
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Steve,

I recently acquired a set of Hyperions. Generally, they're really good in my SCT's (f10), but in my f5 & f6 reflectors - nah. From what I've heard, for f8 and above is the general rule of thumb.

Rod
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