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Manual Focus Lenses Forum

Explore the world of vintage lenses through repair notes, real test shots, and detailed archive threads packed with images.

Explore the world of vintage lenses through repair notes, real test shots, and detailed archive threads packed with images.
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Vivitar 100-500mm f5.6-8 fungus
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Posted: Sat Aug 29, 2026 5:09 pm
Post subject: Vivitar 100-500mm f5.6-8 fungus
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Posted: Sat Aug 29, 2026 5:09 pm
Post subject: Vivitar 100-500mm f5.6-8 fungus
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Picked this up cheaply knowing it would be a cleaning project.



Fungus is pervasive. I am hoping this lens will be simpler than some of the other viv lenses like the 28-90 and 70-210's which often have structural complexity, and will be more like optical blocks in a tube.
Anyway does anyone have any prior experience with this lens?

There is a video on YouTube but it's behind a members only wall.
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