Archived posting to the Leica Users Group, 2000/12/08
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Paul Cherfuka wrote: >I don't find the focus on the 75 to be looser than my 90 - just >smoother. I think the stiffness is actually about equal. It's just >that when I focus the 90 I hear/feel a kind of "ssshhhhhh" >sensation, where the 75 is silent and buttery-smooth. This is >hair-splitting that comes up only when I'm playing with the lenses, >though. When I'm actually shooting, I don't notice any mechanical >differences. Paul, Could the reason be that when you're playing with the lens you still have the end cap on? The "ssshhh" sound is the air being drawn in between cap and flange, which just might be why it feels stiffer than when on the body which has a larger air space. New lenses often have a little grease on the flange which makes a good seal with the cap. Try it without cap, maybe that's all it is. (It could also just be the threads bedding in.) Nick.