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audiobomber · 10-02-2008, 02:02 PM

I bought a 28mm lens on eBay. The seller says it came from his Pentax K1000 camera and is a K-mount. I cannot mount this lens on my K100D Super or on my K20D. What gives? I thought the current cameras could accomodate any legacy lens. The lens is called Image 28mm F/2.8. On the mount face it says P/K-A R-P/K. On the front face it says IMAGE MC.

Gooshin · 10-02-2008, 02:04 PM

take a picture of the underside.

i have a sneaky suspecion its one of those lenses with the extended aperture lever protector.

easy enough fix, just take it off.

montecarlo · 10-02-2008, 02:16 PM

Originally posted by audiobomber

I bought a 28mm lens on eBay. The seller says it came from his Pentax K1000 camera and is a K-mount. I cannot mount this lens on my K100D Super or on my K20D. What gives? I thought the current cameras could accomodate any legacy lens. The lens is called Image 28mm F/2.8. On the mount face it says P/K-A R-P/K. On the front face it says IMAGE MC.

Letter "R" doesn't mean Ricoh ? So it has that extra pin. Take care whan you succed to mount it Pentax K mount - Wikipedia, the free encyclopedia

audiobomber · 10-02-2008, 02:28 PM

Originally posted by montecarlo

Letter "R" doesn't mean Ricoh ? So it has that extra pin. Take care whan you succed to mount it Pentax K mount - Wikipedia, the free encyclopedia

Yes, the base cap says Ricoh. I guess I was lucky I didn't succeed in mounting it. Thanks for the link.

audiobomber · 10-02-2008, 03:39 PM

Originally posted by Gooshin

take a picture of the underside.

i have a sneaky suspecion its one of those lenses with the extended aperture lever protector.

easy enough fix, just take it off.

It looks like this. It has the extra pin, but I think what's keeping it from mounting is the very large black flange.

There's a solution here, but I'm not sure I want to bother since I could just send the lens back. http://www.robertstech.com/flange.htm

10-02-2008, 02:02 PM	#1
audiobomber Veteran Member Join Date: May 2008 Location: Sudbury, Ontario Photos: Albums Posts: 6,806	K-mount won't mount I bought a 28mm lens on eBay. The seller says it came from his Pentax K1000 camera and is a K-mount. I cannot mount this lens on my K100D Super or on my K20D. What gives? I thought the current cameras could accomodate any legacy lens. The lens is called Image 28mm F/2.8. On the mount face it says P/K-A R-P/K. On the front face it says IMAGE MC.

10-02-2008, 03:39 PM	#5
audiobomber Veteran Member Join Date: May 2008 Location: Sudbury, Ontario Photos: Albums Posts: 6,806 Original Poster	Originally posted by Gooshin take a picture of the underside. i have a sneaky suspecion its one of those lenses with the extended aperture lever protector. easy enough fix, just take it off. It looks like this. It has the extra pin, but I think what's keeping it from mounting is the very large black flange. There's a solution here, but I'm not sure I want to bother since I could just send the lens back. http://www.robertstech.com/flange.htm Last edited by audiobomber; 10-02-2008 at 04:07 PM.

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10-02-2008, 02:04 PM	#2
Gooshin Veteran Member Join Date: Sep 2007 Location: Toronto, the one in Canada. Posts: 5,610	take a picture of the underside. i have a sneaky suspecion its one of those lenses with the extended aperture lever protector. easy enough fix, just take it off.

10-02-2008, 02:16 PM	#3
montecarlo Inactive Account Join Date: Sep 2007 Posts: 161	Originally posted by audiobomber I bought a 28mm lens on eBay. The seller says it came from his Pentax K1000 camera and is a K-mount. I cannot mount this lens on my K100D Super or on my K20D. What gives? I thought the current cameras could accomodate any legacy lens. The lens is called Image 28mm F/2.8. On the mount face it says P/K-A R-P/K. On the front face it says IMAGE MC. Letter "R" doesn't mean Ricoh ? So it has that extra pin. Take care whan you succed to mount it Pentax K mount - Wikipedia, the free encyclopedia

10-02-2008, 02:28 PM	#4
audiobomber Veteran Member Join Date: May 2008 Location: Sudbury, Ontario Photos: Albums Posts: 6,806 Original Poster	Originally posted by montecarlo Letter "R" doesn't mean Ricoh ? So it has that extra pin. Take care whan you succed to mount it Pentax K mount - Wikipedia, the free encyclopedia Yes, the base cap says Ricoh. I guess I was lucky I didn't succeed in mounting it. Thanks for the link.

K-mount won't mount

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