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Dirty Lens

Posted 09/08/2023 - 13:08 Link
Iíve just noticed something that looks like dirt inside front glass on my 55-300 lens. Iíve just replaced it with the WR version. Was getting it ready for sale when I noticed it.
Any ideas ?

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Posted 11/08/2023 - 14:56 Link
From what I can gather from second hand lenses offered for sale by dealers, dust is by no means unusual and shouldn't detract from the image as the lens cannot actually focus on it. Hopefully, this will help

Posted 11/08/2023 - 17:32 Link
I can only see dust in that image and I can't tell how much is internal and how much is external. Some internal dust is impossible to avoid and won't detract from the image unless there's a lot, where it will lower contrast a little.
Pentax hybrid user - Digital K3, film 645 and 35mm SLR and Pentax (&other) lenses adapted to Fuji X and Panasonic L digital
Fan of DA limited and old manual lenses

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