Thread: Eyepiece "size"
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Old 07-05-2014, 09:51 AM
ThunderStorm (Alan)
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Join Date: Apr 2014
Location: Sydney
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Eyepiece "size"
I saw some eyepiece stating 5mm 1" and 2.5", what are the differences? Do they affect magnifications?
5mm is the focal length, right?

Sorry if this is a trivial question.
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