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RF100-500 Purple Dot Dead Center

Started 3 months ago | Discussions thread
Abbott Schindler Veteran Member • Posts: 3,099
Re: I see the purple circle
1

GodSpeaks wrote:

Ok, here's my guess. It's a reflection off the rear element of the lens. It only occurs sometimes because the light has to be right and the zoom position also has to be right.

This is the first hypothesis I've seen in this thread that makes sense to me. I've also narrowed my thinking down to it being a reflection off of one or more elements in the lens.

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