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Stiff focus ring In Nikon Lens Series E 100mm 1:2.8 - YouTube
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Topcor 10cm: focus ring stuck or there is trick
Stiff focusing ring on a Biotar 58/2...? No problem!!!
How to fix stiff focus ring on MF lens? : r/AskPhotography
Very Stiff focus ring In Ai-s Nikkor 85mm 1:1.4 - YouTube
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Nikon Non-AI 28mm f3.5 Nikkor-H Lens with Hood | eBay
Stiff focus ring in Ai-NIKKOR-Q·C Auto 1:4 f=200mm - YouTube
Stiff focusing ring on a Biotar 58/2...? No problem!!!
