closed 28mm Macro 1:2.8: I have what I believe is a Canon mount 28m Macro auto lens for sale. It was among some Pentax gear I purchased in the past, but not sure when or where. I do...

PhotogHobbyist Loc: Bradford, PA

I have what I believe is a Canon mount 28m Macro auto lens for sale. It was among some Pentax gear I purchased in the past, but not sure when or where. I do not have any Canon gear and cannot use it, so wish to pass it on to a good home.

The lens appears to be in excellent condition; no noticeable dings or wear; glass is clear without evidence of fungus, scratches or debris; shutter leaves are quick and no evidence of oil or grease. I do have both lens caps.

Asking $75 (but will consider reasonable offers) shipping to lower 48 only, included. Shipping to Alaska or Hawaii will be extra. I will accept a personal check or money order as I do not use PayPal or similar payment methods. I will ship as soon as the payment clears.

PM me if you have any questions.

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CHG_CANON Loc: the Windy City

The 52mm Canon lens cap does not make this a Canon FD mount lens. If there was a red dot on the lens body as the FD mount point, this would seem like a lens that would mount to pre-1987 Canon FD manual-focus film body. That red-dot does not seem to be present in these images, as well as the aperture 'pin' doesn't have the shape for Canon FD. If the lens came along with some other Pentax gear, the lens is likely a Pentax PKA/KR mount. If you still have bodies with this Pentax mount, you might try confirming it will mount to those Pentax bodies.

PhotogHobbyist Loc: Bradford, PA

CHG_CANON wrote:

The 52mm Canon lens cap does not make this a Canon... (show quote)

It will not mount on a Pentax film or digital camera I have tried. There is a red dot on the mounting flange that aligns with the red line and dot to indicate the aperture setting.

CHG_CANON Loc: the Windy City

PhotogHobbyist wrote:

It will ntmount on a Pentax film or digital camera I have tried.

Probably no digital options for any camera type, not with that manual aperture prong poking out. The question is: what film-era mount? As I noted, it doesn't look like Canon FD. Comments / pictures online referenced the Pentax mount mentioned earlier.

soloboogie Loc: Bunker Hill, Indiana

Try Yaschica/Contax

StanMac Loc: Tennessee

From what I found on Google it was manufactured by Phase 2, a third party lens supplier. The KR notations make me think of Pentax Ricoh mount. I found this on Pentax forums:

“It is a Ricoh/Rikenon K mount lens. It will mount but.......

Be very very careful of the 'Ricoh pin'

The difference between K mount and KR is a tiny pin which has no use on a Pentax camera, but may get caught in the AF drive of the K mount and get the lens stuck on your camera.

The pin can be removed if you are game enough to open the lens, or ground off using a small Dremel or similar.

Read more at: https://www.pentaxforums.com/forums/10-pentax-slr-lens-discussion/146972-kr-mount-lens.html#ixzz83CcxDvgA”

Stan

SteveHmeyer Loc: Cincinnati OH USA

Asahi made off brand ?

Not Canon FD or FL

Probably a Minolta MC mount

User ID

Its clearly some variant of the K-mount by both appearance and by its markings. Thaz why it was in a batch lot of Pentax gear. Its also a verrrry low market value item so exact questions of compatibility are really moot.

That lens would very likely fit most any "dumb" adapter for an EVF body, but even a cheap adapter could cost more than that lens is worth. Somebody who currenty owns and uses such an adapter would be an economically reasonable target market, but rotsa ruck widdat :-(

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The OPs pix of the mount lack sufficient clarity. Below are pix of a real Pentax mount from the M series (late 70s early 80s). I use old Pentax and Nikon lenses on "dumb" adapters.

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PhotogHobbyist Loc: Bradford, PA

CHG_CANON wrote:

Probably no digital options for any camera type, not with that manual aperture prong poking out.

CHG_CNON, every Pentax lens I currently or previously owned, has, or had, a very similar "manual aperture prong poking out" and they all worked fine.

I will apologize to all, I had not tried it on my film Pentax cameras. It will mount and function as it should, so I'll remove the item from the selling thread.

Thanks for everyone's comments and advice.

PhotogHobbyist Loc: Bradford, PA

To Admin, please remove this thread. I have been schooled.

CHG_CANON Loc: the Windy City

PhotogHobbyist wrote:

CHG_CNON, every Pentax lens I currently or previously owned, has, or had, a very similar "manual aperture prong poking out" and they all worked fine.

I will apologize to all, I had not tried it on my film Pentax cameras. It will mount and function as it should, so I'll remove the item from the selling thread.

Thanks for everyone's comments and advice.

I tried to hedge. No 1987-onward Canon EOS body could accept a lens with that prong. The entry-level Nikon digitals also would reject such an appendage. I'm not sure about their higher-end Nikon models, even it was an F-mount, but I think it would be a problem there too. Glad the mystery was resolved.

User ID

CHG_CANON wrote:

I tried to hedge. No 1987-onward Canon EOS body could accept a lens with that prong.

It fits just fine, complete with prong. If only .... if only these UHH Gurus were half as expert as they pretend to be.

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The solution should be more than obvious to most anyone when viewing these pix.

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PhotogHobbyist Loc: Bradford, PA

CHG_CANON wrote:

I tried to hedge. No 1987-onward Canon EOS body could accept a lens with that prong. The entry-level Nikon digitals also would reject such an appendage. I'm not sure about their higher-end Nikon models, even it was an F-mount, but I think it would be a problem there too. Glad the mystery was resolved.

You keep talking about Nikon and Canon. I said Pentax. I've never owned a Canon or a Nikon. Let's keep it on the subject.

CHG_CANON Loc: the Windy City

PhotogHobbyist wrote:

You keep talking about Nikon and Canon. I said Pentax. I've never owned a Canon or a Nikon. Let's keep it on the subject.

Well, you listed the lens as a Canon mount. I got involved simply to stop that misinformation.