DPReview.com is closing April 10th - Find out more

RF100-500 Purple Dot Dead Center

Started 3 months ago | Discussions thread
ZX11
ZX11 Veteran Member • Posts: 6,156
Re: RF100-500 Purple Dot Dead Center

nanciej wrote:

Hi

I am really hoping someone here may shine any light on this. About 16 months ago I bought the R5 and rf 100-500. Love them! I only photograph wildlife and I really only do it when I am in Africa. On the first trip with the kit, I noticed a purple dot, dead center. I only saw it on certain photos in the 140-170mm range. I sent the kit to Canon. They returned the R5 right away with a cleaned sensor. They said the brand new 100-500 was full of dirt and I would have to pay to get it cleaned. This was the issue. Every single Canon professional I had spoken to said dust would not form a perfect purple dot dead center.

A perfect purple dot? Not really a dot or purple pixel.

The purple cast in the center of the frame is caused by dirt in the lens according to Canon. Since the same thing happened when the new lens was taken to Africa, and not before, Canon may be onto something. Full of dirt?  That is an extreme description.  How'd that happen?

Get someone other than Canon to clean it for a second opinion.

-- hide signature --

"Very funny, Scotty! Now beam me down my clothes."
"He's dead, Jim! You grab his tri-corder. I'll get his wallet."

 ZX11's gear list:ZX11's gear list
Canon EF 85mm F1.8 USM Canon 70-200 F2.8L III Canon RF 35mm F1.8 IS STM Macro Canon RF 24-105mm F4L IS USM Canon RF 85mm F1.2L USM
Post (hide subjects) Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow