The Only Lens I've Ever Fixed – 35hunter
Cleaning excess oil? Frozen helicoid: Adapted Lens Talk Forum: Digital Photography Review
Nikon 35mm f/2.8 K Tear Down and Overhaul – My Take on Photography (Lens Repairs Mostly)
Jupiter 9 stiff focus despite newly greased helicoid - PentaxForums.com
Very stiff focus ring in Ai-s Nikkor 105mm 1:1.8 - YouTube
Canonet QL19 Stuck Focusing Ring | Photrio.com Photography Forums
How to fix stiff focus ring in Nikkor Pre-Ai 50mm 1:2 - YouTube
Stiff focus ring in Micro-Nikkor Ai 55mm 1:3.5____PART_1___Motion Lapse Film - YouTube
Stiff focus ring in Carl Zeiss T* 50mm 1:1.7 C/Y RE-lube with #10 grease - YouTube
Repair: Micro-Nikkor 105mm f/2.8 Ai-S | Richard Haw's Classic Nikon Repair and Review
Servicing the 55 mm f/2.8 Micro Nikkor Lens
Servicing the 55 mm f/2.8 Micro Nikkor Lens
Breathing New Life into Old Cameras - mike eckman dot com
Stiff focusing ring on a Biotar 58/2...? No problem!!! | Antique cameras, Diy camera, Rings
Repair: Helicoids | Richard Haw's Classic Nikon Repair and Review
Stiff focus ring In Nikon Lens Series E 100mm 1:2.8 - YouTube
Working with the stiff focus ring in Canon FD 100mm 1:2.8 S.S.C. - YouTube
Stiff focus ring in Carl Zeiss T* 50mm 1:1.7 C/Y RE-lube with #10 grease - YouTube
Kodak Retina Ia & IIa focus repair notes
Remove old fungus and re-grease the focus helicoids in Nikon Nikkor Pre-Ai 200mm 1:4 - YouTube
Voigtlander Vito first version
Stiff focus ring in Carl Zeiss T* 50mm 1:1.7 C/Y RE-lube with #10 grease - YouTube
Helios 44M Focus Thread Cleanup — Simon Hawketts' Photo Blog
