Pentax Lens? Attach Help?

**jawats** · 05-01-2019, 12:39 PM

I purchased what seemed / seems like an Auto Makinon K-mount lens from some obscure auction site. Seems like it's in good condition, but:

(1) The aperture doesn't open / shut from the lever, but more importantly...

(2) The lens fits onto the camera, but will not turn and lock.

Photos attached - thoughts?

Last edited by jawats; 02-23-2020 at 11:05 AM.

pschlute · 05-01-2019, 12:46 PM - **1 Like**

Originally posted by jawats

Photos attached - thoughts?

My thoughts are you do not have a Pentax K mount lens

There is no recess for the locking pin for a start.

stevebrot · 05-01-2019, 12:55 PM - **1 Like**

Not Pentax-K on several points. In this case, I believe the "K" on the side is for "Konica".

Steve

pentasonic49 · 05-01-2019, 12:56 PM - **1 Like**

It is not PK fitting, best not to fit it on the camera again in case it damages the body.

**marcusBMG** · 05-01-2019, 01:24 PM - **2 Likes**

Konica. see

SLR Lens Mount Identification Guide

tho his pic is of an early mount on a preset lens so doesn't show aperture connections.
Konica mount only of use to mirrorless users really, doesn't adapt well to dslr. And Makinon was a consumer/generic rebrand manufacturer, none of its lenses have any reputation afaik.

**jawats** · 05-01-2019, 01:28 PM

Thanks all - it's Konica. I'm returning it. Also, I found a guide on here for modifying the mount, but although I love the heft of the lens, I am not sure it's worth the time.

05-01-2019, 12:39 PM	#1
jawats Site Supporter Join Date: Nov 2017 Photos: Gallery \| Albums Posts: 756	Pentax Lens? Attach Help? I purchased what seemed / seems like an Auto Makinon K-mount lens from some obscure auction site. Seems like it's in good condition, but: (1) The aperture doesn't open / shut from the lever, but more importantly... (2) The lens fits onto the camera, but will not turn and lock. Photos attached - thoughts? Last edited by jawats; 02-23-2020 at 11:05 AM.

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05-01-2019, 12:46 PM - 1 Like	#2
pschlute Moderator Loyal Site Supporter Join Date: Mar 2007 Location: Surrey, UK Photos: Gallery Posts: 8,223	Originally posted by jawats Photos attached - thoughts? My thoughts are you do not have a Pentax K mount lens There is no recess for the locking pin for a start.

05-01-2019, 12:55 PM - 1 Like	#3
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Not Pentax-K on several points. In this case, I believe the "K" on the side is for "Konica". Steve

05-01-2019, 12:56 PM - 1 Like	#4
pentasonic49 Veteran Member Join Date: Oct 2012 Location: weston-super-mare Posts: 395	It is not PK fitting, best not to fit it on the camera again in case it damages the body.

05-01-2019, 01:24 PM - 2 Likes	#5
marcusBMG Site Supporter Join Date: Nov 2012 Location: North Wales Photos: Gallery \| Albums Posts: 2,870	Konica. see SLR Lens Mount Identification Guide tho his pic is of an early mount on a preset lens so doesn't show aperture connections. Konica mount only of use to mirrorless users really, doesn't adapt well to dslr. And Makinon was a consumer/generic rebrand manufacturer, none of its lenses have any reputation afaik.

05-01-2019, 01:28 PM	#6
jawats Site Supporter Join Date: Nov 2017 Photos: Gallery \| Albums Posts: 756 Original Poster	Thanks all - it's Konica. I'm returning it. Also, I found a guide on here for modifying the mount, but although I love the heft of the lens, I am not sure it's worth the time.