Are these Pentax Mounts?

Ralphpiano
Posted 25/06/2013 - 09:06 Link
Can anyone tell me if these are Pentax mount lenses please?

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johnwhit
Posted 25/06/2013 - 09:20 Link
The 3rd and 5th aren't as far as I can tell from the images. Are they all meant to be the same mount.

John
PPG link

In LBA hiatus.
DoctorJeff
Posted 25/06/2013 - 10:21 Link
The first thing I always look for is the groove for the locking pin.
Then I look for the "A" and the locking pip for the A setting.
Apart from 3 and 5, some of the others do not "feel" right - but it is hard to judge with out of focus shots.
Geoff
Water can wear away a stone - but it can't cook lunch
X-5
istDS
K2000
P50.
Lenses Digital: 50-200, 18-55 KAF: 28-80.
Lenses KA & K: SMC-KA f2.0, SMC-K f1.4, SMC-K f1.7 Tokina KA 28-70 , SMC Pentax 70-210 F4, Sigma KA 75-300 , Hanimex 500mm Mirror, and the Tamron Adaptall-2 stuff.
and then there's all the M42 kit, and the accessories ...
johnwhit
Posted 25/06/2013 - 10:41 Link
DoctorJeff wrote:
some of the others do not "feel" right - but it is hard to judge with out of focus shots.
Geoff
I'd concur with that.

John
PPG link

In LBA hiatus.
Ralphpiano
Posted 25/06/2013 - 11:33 Link
Thanks guys, the top three are the same lense, a sigma 400mm
The bottom three are a Tokina 80-400mm.

Does this help anyone identify positively or negatively?

Regards
Jason
bforbes
Posted 25/06/2013 - 11:39 Link
I would say neither are a Pentax fit. The electrical contact are all wrong.
McBrian
Posted 25/06/2013 - 12:52 Link
They both look like a Nikon mount.

look here for a comparison..

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Cheers
Brian.
LBA is good for you, a Lens a day helps you work, rest and play.
Ralphpiano
Posted 25/06/2013 - 16:40 Link
Thanks for everyone's help. I agree the contacts look like they wouldn't line up with Pentax bodies and they do both look like Nikon mounts. Many thanks to the forum for a fast and educated response.

Regards
Jason

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