All Forum Comments
Comment by Gyotto posted on Stiff Focus Ring on SMC-F 50mm f1.7 at 08/02/2014 - 20:52
Comment by Gyotto posted on FS: SMC Pentax-F 35-70mm f3.5-4.5 at 07/01/2014 - 17:35
Comment by Gyotto posted on FS: SMC Pentax-M 135mm f3.5 at 07/01/2014 - 17:35
Comment by Gyotto posted on FS: Weltblick 35mm f3.5 (M42) MINT at 07/01/2014 - 17:34
Comment by Gyotto posted on FS: SMC Pentax FA* 24mm f2.0 - MINT at 01/01/2014 - 22:24
Comment by Gyotto posted on FS: Samsung 35mm F2.0 at 24/12/2013 - 10:25
Comment by Gyotto posted on FS: SMC Pentax-M 135mm f3.5 at 14/12/2013 - 19:58
Comment by Gyotto posted on FS: Weltblick 35mm f3.5 (M42) MINT at 14/12/2013 - 19:58
Comment by Gyotto posted on FS: Revuenon MC 55mm f1.2 (PK Mount) MINT at 14/12/2013 - 19:57
Comment by Gyotto posted on FS: AUS Jena DDR Flektogon Auto MC 20mm f2,8 - M42 at 14/12/2013 - 19:55
I have a little problem...
Just got a really MINT copy of a Pentax-F 50mm f1.7
Cosmetically is perfect, the lenses are perfect, no CA at 1.7, rly a good copy.
Auto focus is precise and accurate too.
PROBLEM:
Te focus ring is a bit stiff, especially near infinite. I can hear that the servo motor slows near infinite.
I have another copy of this lens, the focus ring is rly fluid and the servo motor runs faster and without to slow in any point.
I removed the filter ring support, cleaned the old grease (that was dirty, gray) and replaced with a liiittttttllleee bit of LITHIUM grease on the elicoid, but the stiffness do not change at all.
Any advices?
Thanxxxxxxxx
P.S. sry for my english.....