[Leica] Leica M diopters?

[manolito at videotron.ca (EPL)]

In my experience, there are only Leica brand diopters for M cameras. See if
you can find one used. The power should be the same as (give or take a
little) your eyeglass prescription. One should know one's eyeglass
prescription.

However, after using diopters for some years, I realized that I was
short-changing myself on the complete M experience because I was only seeing
correctly with one eye, and only when that one eye was at the viewfinder. In
my opinion, that's no way to hunt for and capture images. One does best with
two eyes seeing sharply, both when not looking through the viewfinder and
also when looking through the viewfinder.

My sincere regrets to any photographers who are blind in one eye.

Remember that the eyepiece diopter correction lenses date from a time when
contact lenses were rather rare, reserved for pro athletes and the like.

So about 10 years ago, I struggled for about a month to get used to using
today's contact lenses. It was not easy at the start -- traumatic, in fact.
I hated them for a while. But with practice, visual life and photography are
much better now and I'd never go back to eyepiece diopter lenses.

I do like cameras with built-in variable diopter adjustments, as this can be
handy in certain field situations. But that's not the Leica M diopter
system.

You may also consider laser eye surgery, although that is much more costly
than contact lenses and, with age, you will still need glasses to see close
up.

Emanuel