Thread: Fathoming difference between GSO superviews.
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Old 24-06-2016, 04:07 AM
glend (Glen)
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glend is offline 		 
Join Date: Jun 2013
Location: Lake Macquarie
Posts: 7,055
Why is the 20mm Pentax any sort of standard for 30mm EPs? Just sell one of the 30mms then you don't have to think about this stuff in the middle of the night.
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