Are these Pentax Mounts?


Ralphpiano

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


johnwhit

Link Posted 25/06/2013 - 09:20
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

Link Posted 25/06/2013 - 10:21
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

Link Posted 25/06/2013 - 10:41
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

Link Posted 25/06/2013 - 11:33
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

Link Posted 25/06/2013 - 11:39
I would say neither are a Pentax fit. The electrical contact are all wrong.
Barrie
Too Old To Die Young
.
Pentax K1 K5-IIS K-01 K20D A50/2 A50/1.7 DA10-17 DA18-250 DA18-135 DA18-55 DA300 DA40 DA50-135 DA50-200 DA55-300 DA70 F35-70 DFA150-450 FA20-35 FA100 FA135 FA35 FA28 FA43 FA50 FA77 K55/1.8 M135/3.5 M200/4 M28/3.5 M28/2.8 M40/2.8 Q 01 02 MX-1 I-10 Sigma 15 24 105 180 8-16 10-20 17-35 17-50/2.8 24-70 400/5.6MF Tamron 70-200/2.8 17/3.5MF 24/2.5MF 28/2.5MF 90/2.5MF


http://www.pentaxphotogallery.com/artists/barrieforbes

McBrian

Link Posted 25/06/2013 - 12:52
They both look like a Nikon mount.

look here for a comparison..



Cheers
Brian.
LBA is good for you, a Lens a day helps you work, rest and play.

Ralphpiano

Link Posted 25/06/2013 - 16:40
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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