Eyepiece/viewfinder adapter sizes

Does anyone have any information on the standardization of viewfinder
accessory clips - or know where there is info? I haven't found much
through internet searches so far. I am trying to find out how standard
they have or have not been. Specifically, I have a right angled Canon
finder that I know fits most Canon's before EOS ( I don't know if it
fits them or not). It also fits my Mamiya 645 and I believe some
Pentaxes. Any ideas - or are the sizes all over the map?
Thanks

"not" wrote in message ...
Does anyone have any information on the standardization of viewfinder
accessory clips - or know where there is info? I haven't found much
through internet searches so far. I am trying to find out how standard
they have or have not been. Specifically, I have a right angled Canon
finder that I know fits most Canon's before EOS ( I don't know if it
fits them or not). It also fits my Mamiya 645 and I believe some
Pentaxes. Any ideas - or are the sizes all over the map?
Thanks

An awful lot of them are the same, although I think Canon EOS is the odd one
out. (Canon's EP-EX would be handy to add to a lot of non-Canon cameras,
but it doesn't fit.)

I think you will find that Pentax, Olympus OM, Mamiya/Sekor, and many
cameras of the 1970s (Yashica, Ricoh, Canon FD, and who knows what else)
have the same eyepiece frame.

The Minolta and Olympus angle finders fit them. Olympus's "Varimagni
Finder" is especially nice since it gives you 2 magnifications.

But they do not fit Nikon (either round or rectangular) nor Canon EOS, as
far as I know.

DISCLAIMER: This is rough information from memory. Make actual tests if
you want something to fit something else!


--
Clear skies,

Michael A. Covington
Author, Astrophotography for the Amateur
www.covingtoninnovations.com/astromenu.html

"not" wrote in message ...
Does anyone have any information on the standardization of viewfinder
accessory clips - or know where there is info? I haven't found much
through internet searches so far. I am trying to find out how standard
they have or have not been. Specifically, I have a right angled Canon
finder that I know fits most Canon's before EOS ( I don't know if it
fits them or not). It also fits my Mamiya 645 and I believe some
Pentaxes. Any ideas - or are the sizes all over the map?
Thanks

An awful lot of them are the same, although I think Canon EOS is the odd one
out. (Canon's EP-EX would be handy to add to a lot of non-Canon cameras,
but it doesn't fit.)

I think you will find that Pentax, Olympus OM, Mamiya/Sekor, and many
cameras of the 1970s (Yashica, Ricoh, Canon FD, and who knows what else)
have the same eyepiece frame.

The Minolta and Olympus angle finders fit them. Olympus's "Varimagni
Finder" is especially nice since it gives you 2 magnifications.

But they do not fit Nikon (either round or rectangular) nor Canon EOS, as
far as I know.

DISCLAIMER: This is rough information from memory. Make actual tests if
you want something to fit something else!


--
Clear skies,

Michael A. Covington
Author, Astrophotography for the Amateur
www.covingtoninnovations.com/astromenu.html

"Michael A. Covington" wrote in message
...
"not" wrote in message ...
Does anyone have any information on the standardization of viewfinder
accessory clips - or know where there is info? I haven't found much
through internet searches so far. I am trying to find out how standard
they have or have not been. Specifically, I have a right angled Canon
finder that I know fits most Canon's before EOS ( I don't know if it
fits them or not). It also fits my Mamiya 645 and I believe some
Pentaxes. Any ideas - or are the sizes all over the map?
Thanks

An awful lot of them are the same, although I think Canon EOS is the odd
one
out. (Canon's EP-EX would be handy to add to a lot of non-Canon cameras,
but it doesn't fit.)

I think you will find that Pentax, Olympus OM, Mamiya/Sekor, and many
cameras of the 1970s (Yashica, Ricoh, Canon FD, and who knows what else)
have the same eyepiece frame.

The Minolta and Olympus angle finders fit them. Olympus's "Varimagni
Finder" is especially nice since it gives you 2 magnifications.

But they do not fit Nikon (either round or rectangular) nor Canon EOS, as
far as I know.

DISCLAIMER: This is rough information from memory. Make actual tests if
you want something to fit something else!


--
Clear skies,

Michael A. Covington
Author, Astrophotography for the Amateur
www.covingtoninnovations.com/astromenu.html

Pentax Spotmatic and ME models are different. One tha fits Spotmatic won't
fit on my ME. Warren

"Michael A. Covington" wrote in message
...
"not" wrote in message ...
Does anyone have any information on the standardization of viewfinder
accessory clips - or know where there is info? I haven't found much
through internet searches so far. I am trying to find out how standard
they have or have not been. Specifically, I have a right angled Canon
finder that I know fits most Canon's before EOS ( I don't know if it
fits them or not). It also fits my Mamiya 645 and I believe some
Pentaxes. Any ideas - or are the sizes all over the map?
Thanks

An awful lot of them are the same, although I think Canon EOS is the odd
one
out. (Canon's EP-EX would be handy to add to a lot of non-Canon cameras,
but it doesn't fit.)

I think you will find that Pentax, Olympus OM, Mamiya/Sekor, and many
cameras of the 1970s (Yashica, Ricoh, Canon FD, and who knows what else)
have the same eyepiece frame.

The Minolta and Olympus angle finders fit them. Olympus's "Varimagni
Finder" is especially nice since it gives you 2 magnifications.

But they do not fit Nikon (either round or rectangular) nor Canon EOS, as
far as I know.

DISCLAIMER: This is rough information from memory. Make actual tests if
you want something to fit something else!


--
Clear skies,

Michael A. Covington
Author, Astrophotography for the Amateur
www.covingtoninnovations.com/astromenu.html

Pentax Spotmatic and ME models are different. One tha fits Spotmatic won't
fit on my ME. Warren