Extreme Nearsightedness--Focusing at infinity without eyeglasses (1 Viewer)

[Canip]

There is in fact some sample variation regarding overdrive, as I have been able to verify.

 

[Tringa45]

There is in fact some sample variation regarding overdrive, as I have been able to verify.

Yes indeed. I think this is one assembly aspect that probably receives less attention than the synchronicity of focussing lenses at zero dioptre setting.
Either excess overtravel at the expense of close focus or vice versa.

John

 

[etc]

lately the trend has been extreme close focus at the expensive of overdrive past infinity.