Scratches inside EF 85 f1.2L II that was never opened. $1800 to repair!: Canon SLR Lens Talk Forum: Digital Photography Review
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How to Clean a Camera Lens: Three Methods to Safely, Easily, and Quickly Clean Dust, Dirt, & Smudges
Cleaning marks on glass good enough reason to claim refund?: Sony Alpha SLR/SLT A-mount Talk Forum: Digital Photography Review
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