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David Rosenthal | all galleries >> Astrophotography >> Equipment >> D.I.Y. Projects >> Collimation Knobs > Collimation Knobs 2
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20-JAN-2007

Collimation Knobs 2

Canon PowerShot SD200
1/60s f/2.8 at 5.8mm full exif

other sizes: small medium large original auto
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