Spot on the mirror

Started Jul 19, 2014 | Questions thread
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DaPonti Contributing Member • Posts: 532
Spot on the mirror


I noticed a while ago a small spot on the SLT mirror. On a uniform background, it starts to be visible around f/9, so hardly an issue in real-life situations. I'm just afraid it'll attract dust and become more of a problem with time.

I tried a blower but that wouldn't do. Any advise on what to use to try to remove it?

See spot at the bottom right.

Thanks in advance

 DaPonti's gear list:DaPonti's gear list
Sony Cyber-shot DSC-WX5 Sony SLT-A58 Olympus OM-D E-M10 II Sony DT 55-300mm F4.5-5.6 SAM Olympus M.Zuiko Digital ED 40-150mm 1:4-5.6 R +3 more
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