Trigger Finger (1 Viewer)

[MiddleRiver]

ugh I hope it never gets stuck.

Or the new SFL 8x30 looks like you could easily use the middle finger to focus.

Weeeell... I was going to say that the HG lacking rubber outer means the diameter is smaller and that means your finger has to work harder to turn the wheel. A Zeiss with huge knob near midline would maybe make it easier to turn and at least for me allows one to use different fingers. I also tend to use fingers from both hands working in unison.
Good luck!

 

[tenex]

I wonder also if using a mouse all day contributes or is even the main issue. I use my index finger to scroll the wheel for hours each day.

Try using the autoscroll feature as much as possible instead. Click the wheel then move the mouse down a bit to engage; click again or rotate slightly to disengage. (This is for Windows, I assume it must be similar on Apple.) Keys like PgUp/Dn can also be used for a change of pace.

 

[tehri]

Did you give a try to focus with 2 fingers.... it's really effective, smooth, and natural !

(Picture from @rodneyAB)
Link : Fingering NL

 

[A2GG]

Did you give a try to focus with 2 fingers.... it's really effective, smooth, and natural !

(Picture from @rodneyAB)
Link : Fingering NL

Yes this is how I normally do it.