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shooz · 06-14-2011, 08:39 PM

I thought maybe it was like the pin on an m42 lens, but seems a bit thick for that.
If it will press down and allow aperture use, there would be a work around.

shooz · 06-14-2011, 08:41 PM

He's got both.
The flag pin and a round post.

Cregar · 06-14-2011, 10:38 PM

Originally posted by RioRico

@OP,
If your lens is also marked KR with an A(P) aperture setting, it is indeed a Ricoh/Pentax mount. That protruding lever is the aperture stop-down flag. It has NOTHING to do with any shutter! You should be able to set the aperture to something like f/11, then push that flag, and the iris should close down. Some KR lenses do have the bad Ricoh pin, but that flag isn't it, and none of my Sears KR lenses contain it.

The third-party (such as Sears) lenses for Konika cams that I have seen are marked KAR or K/AR, not KR. Note that Sears marketed lenses from many lensmakers (including Pentax) and multiple versions of the 135/2.8 exist -- I have had 4 different versions for Pentax, each with slightly different mounts. Is that flag (pin) round or flattened? If it's indeed round, then it is most likely NOT for Pentax.

Clearer pictures would really help.

Ok... aperture stop-down level...cool.... It is round and it still doesn't do anything when push. The iris doesn't close down, also turning the aperture ring (f/22 to f/2.8) doesn't open or close the iris either.

After looking over the lens I can't find an marking that say KR, KAR, or anything. So I am guessing it's not a Pentax lens.

Did you happen to see the 2nd picture I posted? It's a clearing shot.

Thanks for your help

RioRico · 06-15-2011, 10:11 PM

Originally posted by Cregar

Did you happen to see the 2nd picture I posted? It's a clearing shot.

Aha, I just saw that shot! It's definitely NOT a Pentax-mount lens. I don't recall which mount uses that round pin, and I can't check my references till I return home in a few days, but you can safely skip this one and get on with your life!

Cregar · 06-16-2011, 06:11 AM

Originally posted by RioRico

Aha, I just saw that shot! It's definitely NOT a Pentax-mount lens. I don't recall which mount uses that round pin, and I can't check my references till I return home in a few days, but you can safely skip this one and get on with your life!

Don't worry about checking, the seller already refunded my money with no problem.

Thanks again to you and everyone else who helped out.

2 more day till "WORLD PENTAX DAY"

shooz · 06-16-2011, 06:48 AM

Happy to help Cregar.....

Sorry it didn't work out.
Keep hunting, lots of nice 135s out there.
Don't discount a Takumar, w/adapter, it's sweet...........

Alan Clogwyn · 06-16-2011, 07:51 AM

Definitely not a Pentax lens mount, Minolta MD looks favourite, but should stop down on the ring if it is.

ryan s · 06-16-2011, 11:12 AM

On the aperture ring, there should be letters to the right of the f/stop numbers...that is your mount, just like shows in shooz's post.

Not like it matters now, though, but just for future shopping reference

Was this the "macro" version by chance? Want mine?

It's PK.

Cregar · 06-17-2011, 02:13 PM

Originally posted by ryan s

On the aperture ring, there should be letters to the right of the f/stop numbers...that is your mount, just like shows in shooz's post.

Not like it matters now, though, but just for future shopping reference

Was this the "macro" version by chance? Want mine?

It's PK.

Not the Macro... would have been nice. I might be interested, shoot me a message on what your asking for it.

06-14-2011, 10:38 PM	#18
Cregar Forum Member Join Date: Jul 2009 Location: Phoenix, AZ Photos: Albums Posts: 96 Original Poster	Originally posted by RioRico @OP, If your lens is also marked KR with an A(P) aperture setting, it is indeed a Ricoh/Pentax mount. That protruding lever is the aperture stop-down flag. It has NOTHING to do with any shutter! You should be able to set the aperture to something like f/11, then push that flag, and the iris should close down. Some KR lenses do have the bad Ricoh pin, but that flag isn't it, and none of my Sears KR lenses contain it. The third-party (such as Sears) lenses for Konika cams that I have seen are marked KAR or K/AR, not KR. Note that Sears marketed lenses from many lensmakers (including Pentax) and multiple versions of the 135/2.8 exist -- I have had 4 different versions for Pentax, each with slightly different mounts. Is that flag (pin) round or flattened? If it's indeed round, then it is most likely NOT for Pentax. Clearer pictures would really help. Ok... aperture stop-down level...cool.... It is round and it still doesn't do anything when push. The iris doesn't close down, also turning the aperture ring (f/22 to f/2.8) doesn't open or close the iris either. After looking over the lens I can't find an marking that say KR, KAR, or anything. So I am guessing it's not a Pentax lens. Did you happen to see the 2nd picture I posted? It's a clearing shot. Thanks for your help Last edited by Cregar; 06-14-2011 at 10:45 PM.

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06-14-2011, 08:39 PM	#16
shooz Site Supporter Join Date: Jul 2008 Location: Detroit Photos: Gallery \| Albums Posts: 3,491	I thought maybe it was like the pin on an m42 lens, but seems a bit thick for that. If it will press down and allow aperture use, there would be a work around.

06-14-2011, 08:41 PM	#17
shooz Site Supporter Join Date: Jul 2008 Location: Detroit Photos: Gallery \| Albums Posts: 3,491	He's got both. The flag pin and a round post.

06-15-2011, 10:11 PM	#19
RioRico Veteran Member Join Date: Jun 2008 Location: Limbo, California Posts: 11,263	Originally posted by Cregar Did you happen to see the 2nd picture I posted? It's a clearing shot. Aha, I just saw that shot! It's definitely NOT a Pentax-mount lens. I don't recall which mount uses that round pin, and I can't check my references till I return home in a few days, but you can safely skip this one and get on with your life!

06-16-2011, 06:11 AM	#20
Cregar Forum Member Join Date: Jul 2009 Location: Phoenix, AZ Photos: Albums Posts: 96 Original Poster	Originally posted by RioRico Aha, I just saw that shot! It's definitely NOT a Pentax-mount lens. I don't recall which mount uses that round pin, and I can't check my references till I return home in a few days, but you can safely skip this one and get on with your life! Don't worry about checking, the seller already refunded my money with no problem. Thanks again to you and everyone else who helped out. 2 more day till "WORLD PENTAX DAY"

06-16-2011, 06:48 AM	#21
shooz Site Supporter Join Date: Jul 2008 Location: Detroit Photos: Gallery \| Albums Posts: 3,491	Happy to help Cregar..... Sorry it didn't work out. Keep hunting, lots of nice 135s out there. Don't discount a Takumar, w/adapter, it's sweet...........

06-16-2011, 07:51 AM	#22
Alan Clogwyn Forum Member Join Date: Apr 2011 Location: Gwynedd Photos: Gallery Posts: 93	Definitely not a Pentax lens mount, Minolta MD looks favourite, but should stop down on the ring if it is.

06-16-2011, 11:12 AM	#23
ryan s Veteran Member Join Date: Jan 2008 Location: Madison, WI Photos: Gallery Posts: 2,383	On the aperture ring, there should be letters to the right of the f/stop numbers...that is your mount, just like shows in shooz's post. Not like it matters now, though, but just for future shopping reference Was this the "macro" version by chance? Want mine? It's PK.

06-17-2011, 02:13 PM	#24
Cregar Forum Member Join Date: Jul 2009 Location: Phoenix, AZ Photos: Albums Posts: 96 Original Poster	Originally posted by ryan s On the aperture ring, there should be letters to the right of the f/stop numbers...that is your mount, just like shows in shooz's post. Not like it matters now, though, but just for future shopping reference Was this the "macro" version by chance? Want mine? It's PK. Not the Macro... would have been nice. I might be interested, shoot me a message on what your asking for it.

Sears 135mm f/2.8 question

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