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RF100-500 Purple Dot Dead Center

Started 3 months ago | Discussions thread
gcrimmins Regular Member • Posts: 101
Re: RF100-500 Purple Dot Dead Center

I have an old Sigma 15-30 that sometimes has lens flare the same color and shape as your purple dots. That makes me think your problem is caused by some sort of lens flare or internal reflection. You could talk Canon's tech support department and ask them to send you a link so you can upload a few sample photos to them. They may be able to help you confirm what is causing the problem.

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