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Alun Thomas
Joined: 20 Aug 2018
Posts: 628
Location: New Zealand
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 Posted: Sat Nov 16, 2019 7:24 pm Post subject: Caspeco Auto Tele Interchangeable Mount |
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Alun Thomas wrote:
I recently bought this Caspeco badged 135/3.5 lens in New-Old-Stock condition from Ebay. It has an interchangeable mount system I haven't seen discussed before.
It's hard to tell the manufacturer, the colour scheme doesn't seem to have been used anywhere else, things like the depth of focus markings seem fairly generic, and many manufacturers used similar optical arrangements for the focal lengths shown in the instruction manual. Interestingly, there is also a 300mm lens not shown, currently for sale on ebay, without a mount adapter.
Has anyone else used a model from this lens line? |
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visualopsins
Joined: 05 Mar 2009
Posts: 10531
Location: California
Expire: 2025-04-11
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| Posted: Sat Nov 16, 2019 7:43 pm Post subject: |
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visualopsins wrote:
Never seen by me. Nice find!
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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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luisalegria
Joined: 07 Mar 2008
Posts: 6627
Location: San Francisco, USA
Expire: 2018-01-18
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| Posted: Sun Nov 17, 2019 2:06 am Post subject: |
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luisalegria wrote:
Good find!
Thats a new one to me, and I have had all sorts of weird ones.
A rare thing.
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vivaldibow
Joined: 23 Jun 2018
Posts: 837
Expire: 2021-03-09
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| Posted: Sun Nov 17, 2019 2:51 am Post subject: Re: Caspeco Auto Tele Interchangeable Mount |
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vivaldibow wrote:
| Alun Thomas wrote: |
I recently bought this Caspeco badged 135/3.5 lens in New-Old-Stock condition from Ebay. It has an interchangeable mount system I haven't seen discussed before.
It's hard to tell the manufacturer, the colour scheme doesn't seem to have been used anywhere else, things like the depth of focus markings seem fairly generic, and many manufacturers used similar optical arrangements for the focal lengths shown in the instruction manual. Interestingly, there is also a 300mm lens not shown, currently for sale on ebay, without a mount adapter.
Has anyone else used a model from this lens line? |
These are indeed rare. I found that out when I asked the seller what mount it is. Seller said it is an interchangeable mount. Since it is a 135mm, I didn't pull the trigger. Now it seems time to dig out some history. Thanks for posting. |
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calvin83
Joined: 12 Apr 2009
Posts: 7553
Location: Hong Kong
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| Posted: Sun Nov 17, 2019 7:00 am Post subject: |
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calvin83 wrote:
Never heard of this system. 
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Alun Thomas
Joined: 20 Aug 2018
Posts: 628
Location: New Zealand
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| Posted: Sun Mar 01, 2020 10:17 am Post subject: |
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Alun Thomas wrote:
It looks like the system was not confined to Caspeco branded lenses, here are three other brands which also sold these lenses. The prices are too high on the ebay items for me to bother, the Kaligar 300mm lens was part of a lot on Goodwill website which sold for $26, still more than I was willing to pay to satisfy idle curiosity. |
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Pancolart
Joined: 04 Feb 2008
Posts: 3693
Location: Slovenia, EU
Expire: 2013-11-18
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| Posted: Sun Mar 01, 2020 10:20 am Post subject: |
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Pancolart wrote:
Probably Tokina T4 / TX variant or even the same.
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DConvert
Joined: 12 Jun 2010
Posts: 902
Location: Essex UK
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| Posted: Sun Mar 01, 2020 5:47 pm Post subject: |
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DConvert wrote:
| Pancolart wrote: |
| Probably Tokina T4 / TX variant or even the same. |
Camera=wiki claims Tokina made may of their lenses so this seems quite a good bet. Having another incompatible universal mount system would be a bit of a disadvantage IMO.
Tamron's Adaptall seems to be the most popular from what I've seen. I've come across loads of these in my local area, but no more than a handful of TX lenses. |
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Alun Thomas
Joined: 20 Aug 2018
Posts: 628
Location: New Zealand
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| Posted: Sun Mar 01, 2020 6:19 pm Post subject: |
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Alun Thomas wrote:
I considered Tokina also, but the Auto-Tele lens I have definitely isn't compatible with any of my T4/TX or Automount lenses. The Soligor and Vivitar T4 lenses as well as the Lentar Automount lenses, and also the Vivitar TX lenses are all distinguishable by having a 'double' aperture scale working in both directions from the widest setting. Automount and T4/TX mounts are physically similar except Automount uses a threaded connection instead of the T4/TX method. Interestingly I also saw a Sun/Tokina lens using what was probably Automount, they gave it a different name which escapes me, it was over priced so I never tried it out, and haven't seen another since.
Other interchangeable systems I compared against were also not compatible - Suns' System mount (used before YS system, and similar in concept to Auto-Tele, but ultimately not the same system), Kalimars' Auto-T, YS mount, Adaptall, Unidapt etc.
I always have considered the Kalimar (and Colt/Optomax/Sesnon/EuroDesign) Auto-T lenses to be most likely an Itoh/Kogaku product. With Tokina probably not the manufacturer, likewise Tamron or Sigma, the list of likely sources is whittled down. I had hopes for Sun Optical or perhaps some associated company of that group. One possibility may be Komura, although once they started selling using their own name I'm not sure they any longer sold to rebadging entities, but who knows. business is business. Anyway, pure conjecture. The mount wasn't compatible with Unidapt in any case. |
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philslizzy
Joined: 07 Aug 2012
Posts: 4748
Location: Cheshire, England
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| Posted: Sun Mar 15, 2020 1:30 pm Post subject: |
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philslizzy wrote:
I have an odd Nikon mount which would appear to fit that lens, though there's no markings save for N/AI Japan. Has the exakta mount got a (minolta style) slot in one of its bayonet lugs?
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