Originally posted by photolady Thanks Dave. I'm not sure why you said this.
It was my (possibly sexist) assumption that you don't have the same hand strength as me.
On lenses, it is all about getting that ring to turn the first millimeter. The ring is usually aluminum (soft), the slots are tiny, and the tool usually doesn't fit perfectly. When the tool's center of gravity is way out there, far from where you want the force to be applied, it just makes things worse. I think the spanners that look like a big
H
with an extra crossbar are tougher to use. More hand strength is devoted to keeping the tool from skittering across the lens's front element than turning.