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Hipo · 10-14-2011, 08:50 AM

Hi everyone,

I'm in the position to buy a lot of lenses which contains a 135mm pentax m 3.5.
The only problem is that the seller isn't a photographer who knows wich lens belongs to which type of mount.
I tried by looking and matching but I'm not 100% certain on a few of them.
Could you guys help me out?

RioRico · 10-14-2011, 10:10 AM

I can't tell from the picture. Check here: SLR Lens Mount Identification Guide

**Just1MoreDave** · 10-14-2011, 10:13 AM

The top two don't look like K-mounts. The one on the left is hard to say anything about, but the aperture lever looks wrong to me. On the right, maybe OM? These two and the Canon are telephotos, I think, because of the deep rear elements. The M135/3.5 is the upper one in the bottom pair of unidentified lenses. The other one might be a K-mount too. I would guess this one and the M42 mount are 28mm f2.8 lenses based again on rear elements. The M42 is not a Takumar, and the other possible 28mm is not a Pentax, based on the screws in the M42 and chrome of the bayonet. Only pay for the M135/3.5, the rest are not going to be worth a lot.

Hipo · 10-14-2011, 11:11 AM

@RioRico: I used that site but didn't came far as you see

@Just1MoreDave: Thanks for the help! Your advice about buying only the pentax is probably best. Hope that he is willing to sell a single lens.

elho_cid · 10-14-2011, 11:16 AM

the ? one on right side is OM for sure

10-14-2011, 08:50 AM	#1
Hipo New Member Join Date: Sep 2011 Posts: 3	Which type of bayonet are we looking at? Hi everyone, I'm in the position to buy a lot of lenses which contains a 135mm pentax m 3.5. The only problem is that the seller isn't a photographer who knows wich lens belongs to which type of mount. I tried by looking and matching but I'm not 100% certain on a few of them. Could you guys help me out?

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10-14-2011, 10:10 AM	#2
RioRico Veteran Member Join Date: Jun 2008 Location: Limbo, California Posts: 11,263	I can't tell from the picture. Check here: SLR Lens Mount Identification Guide

10-14-2011, 10:13 AM	#3
Just1MoreDave Site Supporter Join Date: Feb 2007 Location: Aurora, CO Photos: Gallery \| Albums Posts: 6,340	The top two don't look like K-mounts. The one on the left is hard to say anything about, but the aperture lever looks wrong to me. On the right, maybe OM? These two and the Canon are telephotos, I think, because of the deep rear elements. The M135/3.5 is the upper one in the bottom pair of unidentified lenses. The other one might be a K-mount too. I would guess this one and the M42 mount are 28mm f2.8 lenses based again on rear elements. The M42 is not a Takumar, and the other possible 28mm is not a Pentax, based on the screws in the M42 and chrome of the bayonet. Only pay for the M135/3.5, the rest are not going to be worth a lot.

10-14-2011, 11:11 AM	#4
Hipo New Member Join Date: Sep 2011 Posts: 3 Original Poster	@RioRico: I used that site but didn't came far as you see @Just1MoreDave: Thanks for the help! Your advice about buying only the pentax is probably best. Hope that he is willing to sell a single lens.

10-14-2011, 11:16 AM	#5
elho_cid Veteran Member Join Date: Dec 2007 Location: Prague Photos: Gallery Posts: 1,199	the ? one on right side is OM for sure

Which type of bayonet are we looking at?

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