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jamaeolus
Joined: 19 Mar 2014
Posts: 2929
Location: Eugene
Expire: 2015-08-20
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 Posted: Fri May 27, 2022 12:01 am Post subject: Yet another mount query. |
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jamaeolus wrote:
I got a oly macro with an unidentified mount swapped for the original. Can anybody tell me what this is? I can tell you some of the bayonet mount it isn't: Oly, PK, Konica AR, Minolta MD, EOS, C/Y, or QBM. The cap said: for SA/KPR. it almost fits the Sony A mount on my LA-EA5 but doesnt quite lock in place. I don't know if I want to keep it or send it back. The listing just had "used" It was a couple hundred off the normal BIN listings and I been lusting after this glass for some time.
url=http://forum.mflenses.com/userpix/20225/big_7980_16536089929191993646242317344104_1.jpg] [/url]
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Last edited by jamaeolus on Sat May 28, 2022 4:36 pm; edited 1 time in total |
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visualopsins
Joined: 05 Mar 2009
Posts: 10541
Location: California
Expire: 2025-04-11
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| Posted: Fri May 27, 2022 1:03 am Post subject: |
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visualopsins wrote:
Sure it's not PK?
For reference:
https://vintagelens.nl/2018/02/19/slr-lens-mount-identification-guide-richard-oleson/
https://www.keh.com/blog/the-lens-mount-guide-part-1
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Cameras: Sony ILCE-7RM2, Spotmatics II, F, and ESII, Nikon P4
Lenses:
M42 Asahi Optical Co., Takumar 1:4 f=35mm, 1:2 f=58mm (Sonnar), 1:2.4 f=58mm (Heliar), 1:2.2 f=55mm (Gaussian), 1:2.8 f=105mm (Model I), 1:2.8/105 (Model II), 1:5.6/200, Tele-Takumar 1:5.6/200, 1:6.3/300, Macro-Takumar 1:4/50, Auto-Takumar 1:2.3 f=35, 1:1.8 f=55mm, 1:2.2 f=55mm, Super-TAKUMAR 1:3.5/28 (fat), 1:2/35 (Fat), 1:1.4/50 (8-element), Super-Multi-Coated Fisheye-TAKUMAR 1:4/17, Super-Multi-Coated TAKUMAR 1:4.5/20, 1:3.5/24, 1:3.5/28, 1:2/35, 1:3.5/35, 1:1.8/85, 1:1.9/85 1:2.8/105, 1:3.5/135, 1:2.5/135 (II), 1:4/150, 1:4/200, 1:4/300, 1:4.5/500, Super-Multi-Coated Macro-TAKUMAR 1:4/50, 1:4/100, Super-Multi-Coated Bellows-TAKUMAR 1:4/100, SMC TAKUMAR 1:1.4/50, 1:1.8/55
M42 Carl Zeiss Jena Flektogon 2.4/35
Contax Carl Zeiss Vario-Sonnar T* 28-70mm F3.5-4.5
Pentax K-mount SMC PENTAX ZOOM 1:3.5 35~105mm, SMC PENTAX ZOOM 1:4 45~125mm
Nikon Micro-NIKKOR-P-C Auto 1:3.5 f=55mm, NIKKOR-P Auto 105mm f/2.5 Pre-AI (Sonnar), Micro-NIKKOR 105mm 1:4 AI, NIKKOR AI-S 35-135mm f/3,5-4,5
Tamron SP 17mm f/3.5 (51B), Tamron SP 17mm f/3.5 (51BB), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron)
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jamaeolus
Joined: 19 Mar 2014
Posts: 2929
Location: Eugene
Expire: 2015-08-20
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| Posted: Fri May 27, 2022 5:10 am Post subject: |
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jamaeolus wrote:
It won't fit either of my PK -EOS adapters. I decided to take off the mount flange and see what is what. The original oly housing has been shaved off to adjust flange distance or something. Anyway it's going back to the seller.
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Raxar
Joined: 25 Mar 2014
Posts: 222
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| Posted: Fri May 27, 2022 7:05 am Post subject: |
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Raxar wrote:
it said on the mount mate! its Sigma SA mount! |
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Phalbert
Joined: 17 May 2009
Posts: 359
Location: Namibia
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| Posted: Fri May 27, 2022 11:26 am Post subject: |
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Phalbert wrote:
What lens is it?
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🙋 My wishlist: Titan or Idaho 135/1,8 Nikon Df Nikkor 105/1,8 35/1,4 85/1,4
My dream lenses: Zuiko 180/2 Prototype Zuiko 85/1,4
Zeiss CY: 55/1,2 85/1,2
Astro Berlin 250/2 Canon EF 50/1,0 85/1,2
Nikkor 105/1,4 28/1,4
My stolen stuff: Zuiko 24/2 #106874; Zuiko 35-80/2,8 #102180; Zuiko 35/2 #119168; Zuiko 90/2 macro #102858; Zuiko x1,4 converter #102019; Tamron 17/3,5 #400567; Tamron 400/4 #80407; Soligor 135/2 #17506600 Sigma 28/1,8 #1001124 |
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DConvert
Joined: 12 Jun 2010
Posts: 902
Location: Essex UK
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| Posted: Fri May 27, 2022 11:29 am Post subject: |
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DConvert wrote:
| Raxar wrote: |
| it said on the mount mate! its Sigma SA mount! |
I've never seen SA mount lenses without electrical contacts - they have contacts just like EOS lenses & apparently use the same comms protocols. |
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dickb
Joined: 04 Apr 2008
Posts: 821
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| Posted: Fri May 27, 2022 11:45 am Post subject: |
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dickb wrote:
AFAIK SA/KPR stands for Sigma A mount / K mount Pentax Ricoh. The Sigma lens caps are marked as such as they should fit both mounts. Lens caps are a less precise fit than cameras and adapters, so my guess is that the lens is a Sigma A mount. Anyway, if the lens wasn't sold as a DIY conversion to Sigma A, I would send it back as well (or get a major discount). |
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DConvert
Joined: 12 Jun 2010
Posts: 902
Location: Essex UK
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| Posted: Fri May 27, 2022 12:36 pm Post subject: |
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DConvert wrote:
| dickb wrote: |
| AFAIK SA/KPR stands for Sigma A mount / K mount Pentax Ricoh. The Sigma lens caps are marked as such as they should fit both mounts. Lens caps are a less precise fit than cameras and adapters, so my guess is that the lens is a Sigma A mount. Anyway, if the lens wasn't sold as a DIY conversion to Sigma A, I would send it back as well (or get a major discount). |
You are indeed correct, and I suppose the electrical connections wouldn't be relevant with a DIY conversion.
I have seen forum posts that claim PK & SA are physically the same but I think this is incorrect & based purely on the SA lens caps. My measurements show significant differences such as the bayonet tabs on SA being nearly 0.5mm thinner... |
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D1N0
Joined: 07 Aug 2012
Posts: 2494
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| Posted: Fri May 27, 2022 2:24 pm Post subject: |
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D1N0 wrote:
Maybe just reconvert it to Olympus. Looks like the drilled some extra holes in the mount to fit the Oly screw holes.
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jamaeolus
Joined: 19 Mar 2014
Posts: 2929
Location: Eugene
Expire: 2015-08-20
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| Posted: Fri May 27, 2022 2:52 pm Post subject: |
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jamaeolus wrote:
It is the 20mm f2 macro. I can't restore to original spec because the barrel has been shaved at the base under the mount. Also the interior components for the OM mount locking mechanism and such are all gone. The seller has offered a partial refund or return option. 🤔 I am torn. I'm sure I could make it work but I could never sell it for anywhere near the full value of the original. What say? Ask for a hundred dollars off?
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dickb
Joined: 04 Apr 2008
Posts: 821
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| Posted: Fri May 27, 2022 5:38 pm Post subject: |
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dickb wrote:
In good original condition the going price is a bit over 500 usd. I'm not sure if that is mostly users or collectors buying these. I'd not pay much more than 200 usd for it in this condition. If you are planning to use it yourself a long time it may be worth more to you, just know it isn't a good investment. |
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visualopsins
Joined: 05 Mar 2009
Posts: 10541
Location: California
Expire: 2025-04-11
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| Posted: Fri May 27, 2022 6:02 pm Post subject: |
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visualopsins wrote:
Click here to see on Ebay
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☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ like attracts like! ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮
Cameras: Sony ILCE-7RM2, Spotmatics II, F, and ESII, Nikon P4
Lenses:
M42 Asahi Optical Co., Takumar 1:4 f=35mm, 1:2 f=58mm (Sonnar), 1:2.4 f=58mm (Heliar), 1:2.2 f=55mm (Gaussian), 1:2.8 f=105mm (Model I), 1:2.8/105 (Model II), 1:5.6/200, Tele-Takumar 1:5.6/200, 1:6.3/300, Macro-Takumar 1:4/50, Auto-Takumar 1:2.3 f=35, 1:1.8 f=55mm, 1:2.2 f=55mm, Super-TAKUMAR 1:3.5/28 (fat), 1:2/35 (Fat), 1:1.4/50 (8-element), Super-Multi-Coated Fisheye-TAKUMAR 1:4/17, Super-Multi-Coated TAKUMAR 1:4.5/20, 1:3.5/24, 1:3.5/28, 1:2/35, 1:3.5/35, 1:1.8/85, 1:1.9/85 1:2.8/105, 1:3.5/135, 1:2.5/135 (II), 1:4/150, 1:4/200, 1:4/300, 1:4.5/500, Super-Multi-Coated Macro-TAKUMAR 1:4/50, 1:4/100, Super-Multi-Coated Bellows-TAKUMAR 1:4/100, SMC TAKUMAR 1:1.4/50, 1:1.8/55
M42 Carl Zeiss Jena Flektogon 2.4/35
Contax Carl Zeiss Vario-Sonnar T* 28-70mm F3.5-4.5
Pentax K-mount SMC PENTAX ZOOM 1:3.5 35~105mm, SMC PENTAX ZOOM 1:4 45~125mm
Nikon Micro-NIKKOR-P-C Auto 1:3.5 f=55mm, NIKKOR-P Auto 105mm f/2.5 Pre-AI (Sonnar), Micro-NIKKOR 105mm 1:4 AI, NIKKOR AI-S 35-135mm f/3,5-4,5
Tamron SP 17mm f/3.5 (51B), Tamron SP 17mm f/3.5 (51BB), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron)
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jamaeolus
Joined: 19 Mar 2014
Posts: 2929
Location: Eugene
Expire: 2015-08-20
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| Posted: Sat May 28, 2022 2:19 am Post subject: |
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jamaeolus wrote:
Asked and received a hundred dollar refund. So 190 all in. To me a 200 investment on that caliber of macro lens is well worth it even being aware the collector value is ruined. I will probably swap in an m42 or EOS mount as I have adapters to many types of systems. Be it helical m42, or minolta tilt shift bellows or eos to LM to fit my techart
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dickb
Joined: 04 Apr 2008
Posts: 821
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| Posted: Sat May 28, 2022 9:08 am Post subject: |
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dickb wrote:
Sounds like a good compromise price. I like standardising everything to M42 as well, nice to fit anything onto anything else. Just a bit cumbersome sometimes if you want to unscrew a specific m42 part without unscrewing others. There are m42-m39 and m39-leica M adapters, so m42 could fit your Techart as well. Not sure if autofocus is a big plus in the magnification range the lens is intended for, but may be fun to experiment. |
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jamaeolus
Joined: 19 Mar 2014
Posts: 2929
Location: Eugene
Expire: 2015-08-20
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| Posted: Fri Jun 17, 2022 10:44 pm Post subject: |
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jamaeolus wrote:
So I got my m42 adaptation completed. I found an "m42 to Series 7 thread" reverse adapter. I wasn't sure what a series 7 thread was but it was cheap and looked about the right size. I figured at worst I could grind off the threads an tap through. Came in and it's diameter fit perfectly. I found an Ednalight filter holder that threaded into it. Ground the the threads off of that and matched and drilled to hit the pre-existing threaded holes in the lens. Fortuitously the previous adaptation had quite long screws. Cut a piece of plastic to hold the flocked cone in place. I also cut little squares of black plastic to fill the holes for stop down and release mechanism that the previous adaptation had removed the parts and just left open. Screwed it all together and it looks OK. 
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jamaeolus
Joined: 19 Mar 2014
Posts: 2929
Location: Eugene
Expire: 2015-08-20
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| Posted: Sat Jun 18, 2022 1:31 am Post subject: |
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jamaeolus wrote:
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Doc Sharptail
Joined: 23 Nov 2020
Posts: 993
Location: Winnipeg Canada
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| Posted: Sat Jun 18, 2022 3:00 pm Post subject: |
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Doc Sharptail wrote:
That must have been quite a lens before it was modified.
Your sensor could use a cleaning- the same 3 divots appear in all frames.
Olympus glass is sometimes very, very good.
-D.S.
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50 f2 H nikkor, 50 f 1.4 AI-s, 135 f3.5 Q,
50 f2 K nikkor 2x, 28-85mm f3.5-4.5 A/I-s, 35-105 3.5-4.5 A/I-s, 200mm f4 Micro A/I, partial list.
"Ain't no half-way" -S.R.V.
"Oh Yeah... Alright" -Paul Simon |
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Gatorengineer64
Joined: 26 Oct 2017
Posts: 279
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| Posted: Sun Jun 19, 2022 12:33 am Post subject: |
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Gatorengineer64 wrote:
Nice shots were those taken with a hellicoid?
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A7R4, GFX50R and a bucket of mflenses |
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jamaeolus
Joined: 19 Mar 2014
Posts: 2929
Location: Eugene
Expire: 2015-08-20
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| Posted: Sun Jun 19, 2022 5:10 pm Post subject: |
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jamaeolus wrote:
Yeah I didn't notice the specs til after I took the photos. I used a NEX close with a helical m42 17-31. The chop they did only removed the Oly auto diaphragm control and the lens disconnect button, and shaved the oly mount bayonet. I tied the switch for A-M to the manual side with a small piece of copper wire. Optically its still the same excellent Oly glass. Ruined its collector value. My adaptation actually improves its flexibility since m42 adapters exist for most common mounts.A self portrait...
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