'Mount' question:

[David Lyga]

Can someone please shed light upon this unknown mount? Perhaps it will ring a bell immediately, but I am truly stumped.

In the first photo, the left mount is a Canon EF for AF EOS 35mm cameras.

The center mount is a Canon EF-S for Canon Digital cameras.

The right mount is what? It is less wide than the other mounts and is not Pentax, Mamiya bayonet, or Fuji-X. I have a feeling that it is for a Canon Digital but I do not know which. How many post-FD Canon mounts were there, anyway!?!?! The lens is question is a Sigma 28-80 II Macro and its side and front views are included here. Thank you. - David Lyga

 

[Ricardo Miranda]

The question is: how did you get it?
Given the age, it is probably for the Sigma SA mount.

 

[AgX]

There are only the EF and EF-S mounts.

The EF-S mount differs only from the EF by:

-) being intended for shorter flange/film distance (of course)
-) having a produding ring around the rear lens opening, hampering mounting it to EF cameras.

 

[David Lyga]

Thank you for the answers, but still we do not have the definitive answer. I will wail without holding my breath. Ricardo, I got it in a deal. I HAD to take it. - David Lyga

 

[locutus]

Sigma SA mount is like Pentax K with a larger inner size and EOS electrical signals... (yes thats weird)

 

[AgX]

Yes, it looks exactly like an Sigma SA mount.

 

[Paul Howell]

My understanding is that the Sigma SA mount is closer to a Canon mount, Canon bridges the last two pins. Like Canon Sigma used micro motors from the beginning rather than gear driven like Pentax and Nikon. Some Sigma users reportedly have put Sigma SA mounts on Canon Lens which with the exception of Af will work on a Sigma. I have the same lens for my Sigma SA cameras, used it with my SA 9 and 7s until they died the yellow death.

 

[John Wiegerink]

Sigma SA mount is Pentax "K"(you can actually mount Pentax K lenses onto Sigma SA mount cameras with a small modification) and the electric contacts are Canon EOS. Sigma made the EOS Canon mount bodies for some of the Kodak Professional digital cameras.

 

[MattKing]

There are only the EF and EF-S mounts.

There is also an EF-M mount for Canon mirrorless cameras.

 

[AgX]

You know, I'm living in the past.

 

[MattKing]

You know, I'm living in the past.

There is a song about that:

 

[AgX]

I play it all day...

 

[LAG]

The sigma lens mount is A, Sony A / Minolta A (but does that Sigma lens have an adapter screwed on?)

 

[Ricardo Miranda]

The sigma lens mount is A, Sony A / Minolta A (but does that Sigma lens have an adapter screwed on?)

See: https://en.wikipedia.org/wiki/Sigma_SA-mount

 

[LAG]

See: https://en.wikipedia.org/wiki/Sigma_SA-mount

???

 

[Ricardo Miranda]

???

I didn't understood why you were referring the Minolta A (Alpha) mount.

 

[LAG]

I didn't understood why you were referring the Minolta A (Alpha) mount.

I didn't "understand" ... why you referred me to the Wiki

I was giving my answer to the original poster, and asking him a question ... But since you didn't understand my post I can explain it longer: as far as I know that Sigma 28-80 II Mini Zoom Macro Asphe. can have Sony A | Minolta A, Canon EF | EF-S, Pentax K & Nikon F mount, if David thinks that Canon and Pentak are out of the question, hence my post. I could be wrong of course, or perhaps it could help. IDK.

Sorry if I caused any discomfort to anyone

Best!

 

[Ricardo Miranda]

That lens can and it is IMHO a Sigma SA lens.
Sigma made most if not all of their lenses available in their own mount.

 

[Ricardo Miranda]

David's lens can't be a Minolta A because it has a switch for AF/MF on the lens.
At the time frame that this lens was made (2000-2003 give or take) there were only 2 mounts with such a switch: Canon EF and Sigma SA.
Life was easier for mounts back then.

 

[David Lyga]

The sigma lens mount is A, Sony A / Minolta A (but does that Sigma lens have an adapter screwed on?)

LAG, There is NO mount screwed on. So, alas, I have no camera to use it on and even if I tried to modify that mount to fit on something, there is NO manual aperture ring, so the lens is going to have to wait to find a home, either at my home or with someone else. I have many MAXXUM lenses and it definitely is NOT one of those.

Thank you for your in-depth renderings. This forum is tops for finding out arcane data. - David Lyga

 

[Paul Howell]

At this point you can find quite cheap a Sigma SA7 or 9 film camera, I owned both, very good design, both used the same pentaprism in which the glue is turning yellow. Mine were past yellow on the orange, usable with B&W as the yellow tint has not impact on the negative, not so good with color, could not really see to judge colors well enough. You can also look for work a SD 9 or 10 in working condition, the SD9 have become somewhat of a cult classic for Sigma shooters, don't know if it worth the trouble for one lens, it is a good lens, but still a kit lens.