maths/optics help please..

Started May 18, 2012 | Discussions thread
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realsand OP Forum Member • Posts: 67
Re: maths/optics help please..

OK, thank you bryan!

 realsand's gear list:realsand's gear list
Olympus OM-D E-M10 Panasonic Lumix G 20mm F1.7 ASPH Olympus M.Zuiko Digital ED 40-150mm 1:4-5.6 Olympus M.Zuiko Digital 45mm F1.8 Olympus 12-40mm F2.8
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