Diopter correctors for Canon SLRs

CharlesHB4

Does anyone have any experience with using diopter correctors for Canon SLR view finders?

Thanks

hgernhardtjr

CharlesHB4 wrote:

Does anyone have any experience with using diopter correctors for Canon SLR view finders?

Thanks

Are you specifically asking about the older film SLR cameras? Most of the "modern" ones and dSLRs have a small knob or lever under the viewfinder to adjust the diopter to fit your eye. I can easily shoot without my glasses, though I have to put them back on to read the LCD screens.

David_S85

I have a 35 year old Canon -2 diopter that still fits perfectly on any modern Canon dSLR. Since the built-in diopter on my 20D can adjust to -2, I haven't used it. I imagine as my sight gets worse I might need it again. They do work though.

CharlesHB4

Thanks Henry and David

David_S85 wrote:

I have a 35 year old Canon -2 diopter that still fits perfectly on any modern Canon dSLR. Since the built-in diopter on my 20D can adjust to -2, I haven't used it. I imagine as my sight gets worse I might need it again. They do work though.

I am interested in the effectivenss of adding one of the separate diopter corrections. I believe they just add or subtract to the built-in adjustment value on the little knob by the viewfinder on the camera. My wife is extremely nearsighted and the built in adjustment on her 20D is insufficient, with or without her glasses. She cannot focus manually and must rely on autofocus, wich works fine for most shots. However with some of Canon's very fast lenses used close up (with very narrow DOFs) autofocus is problematic. Canon claims they (the correctors which come in various fixed + or - diopter ratings) work on virturally all their EOS line, which means they should work when she moves up to a 1Ds .

ivar

Since a few weeks, I've been the proud owner of a custom diopter correction piece. Works pretty good, considering the circumstances, I'm happy with it. I'll do a writeup on it soon.

hgernhardtjr

CharlesHB4 wrote:

Canon claims they (the correctors which come in various fixed + or - diopter ratings) work on virturally all their EOS line, which means they should work when she moves up to a 1Ds .

In years gone by I have personally used custom diopter correction lenses for the viewfinder of several of my film cameras. Have no fear, they work very well! I would have no reason to believe Canon's newer offerings would be anything but effective.

In fact, and for whatever it may be worth, a couple of years ago an acquaintance I met on a trip out West had a custom "prescription" viewfinder lens crafted by an optician for his camera and even had his scuba mask appropriately fitted with a prescription faceplate.

RustingInPeace

Lasik
Skip the diopter and get the LASIK surgery:D