Which Diopter for an R4 ? in Leica and Rangefinders Posted November 23, 2000 Actually it depends on how you want to use the camera, with or without your glasses. In my case I wear glasses for the distance. I'm near-sighted. I also wear them using my camera because I think it too cumbersome to remove the glasses while looking through the viewfinder and putting them up again when looking directly at my subject. When looking through the viewfinder of your R4 you look actually at the focussing screen at a appearant distance of around 60 cm (25"). In my case with advancing age, I was not longer able to see the screen image sharp; it appeared to close for me, the same as when reading. So my camera needed a reading correction, a + diopter correcting glass. To determine which one I went to the camerashop where I buy most of my equipment. They have a device (for minolta but it also worked for my leicas) that can be attachhed to the camera. By turning a dial the diopter value changes and it is possible to determine the correct value by looking through the viewfinder. I did this and have now a + 1 correction in both my R3 and R4. Only the Leitz correction lens comes together with a little attachment device and it was around $ 100. But when you need it to change it is much cheaper th ask your opticien to provide you with the little glass only. On the other hand, for my M3 I don't need any correction. It works just fine for me. <p> Peter Ingen Housz
Which Diopter for an R4 ?
in Leica and Rangefinders
Posted
Actually it depends on how you want to use the camera, with or
without your glasses. In my case I wear glasses for the distance. I'm
near-sighted. I also wear them using my camera because I think it too
cumbersome to remove the glasses while looking through the viewfinder
and putting them up again when looking directly at my subject. When
looking through the viewfinder of your R4 you look actually at the
focussing screen at a appearant distance of around 60 cm (25"). In my
case with advancing age, I was not longer able to see the screen
image sharp; it appeared to close for me, the same as when reading.
So my camera needed a reading correction, a + diopter correcting
glass. To determine which one I went to the camerashop where I buy
most of my equipment. They have a device (for minolta but it also
worked for my leicas) that can be attachhed to the camera. By turning
a dial the diopter value changes and it is possible to determine the
correct value by looking through the viewfinder. I did this and have
now a + 1 correction in both my R3 and R4. Only the Leitz correction
lens comes together with a little attachment device and it was around
$ 100. But when you need it to change it is much cheaper th ask your
opticien to provide you with the little glass only.
On the other hand, for my M3 I don't need any correction. It works
just fine for me.
<p>
Peter Ingen Housz