btgc
Veteran
Hello on dark side!
Received 28mm Rikenon P lens and everything is nice about it if only not slight slip of focus ring, I mean when turned it starts fine but at some moment internally skips small distance. It does slip only when focus ring is turned from min. to infinity, by small amount.
First it seemed that infinity focus is OK though today I look and find that it goes beyond infinity by small amount. When focused on object at 1m (3.3f ?) focus also doesn't match 1m mark on scale by very similar distance as infinity does.
I can start fuss with seller, though maybe there's easy adjustment ?
UPD: checked for screws under focus ring rubber, there are no sc rews. Focus ring is fixed in position rather internaly. Found similar symptoms for other lenses and slack movement/slip/play is said to be due to "the wear on the focus mount threads, and the lubricant that has dried up".
Received 28mm Rikenon P lens and everything is nice about it if only not slight slip of focus ring, I mean when turned it starts fine but at some moment internally skips small distance. It does slip only when focus ring is turned from min. to infinity, by small amount.
First it seemed that infinity focus is OK though today I look and find that it goes beyond infinity by small amount. When focused on object at 1m (3.3f ?) focus also doesn't match 1m mark on scale by very similar distance as infinity does.
I can start fuss with seller, though maybe there's easy adjustment ?
UPD: checked for screws under focus ring rubber, there are no sc rews. Focus ring is fixed in position rather internaly. Found similar symptoms for other lenses and slack movement/slip/play is said to be due to "the wear on the focus mount threads, and the lubricant that has dried up".
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