Some questions about the Tomioka Auto Tominon 55mm f1.2 (m42)

Norkusa · Sep 25, 2015

I just found one of these Tomioka Auto Tominon 55mm f/1.2 lenses yesterday for next to nothing. It's the Kogaku version with the m42 mount. Apparently its a valuable collectors lens because it was the fastest m42 ever made and there's only around 300 of them, but I just want to use it with my Canon 5D Mk III.

The rear element on the Tomioka is so large, it bumps up against the rim of the M42 to EOS adapter, so I can't focus past 7ft/3m. My Pentax and Mamiya f/1.4's don't have this problem. So I guess the solution is to purchase a non-flange EOS adapter for it? Or is there another way to get this on my DSLR without damaging anything?

Has anyone here used one of these Tomioka's 55mm f/1.2's? Just curious about the image quality and if they live up to the hype. I found this 'fan' website and a few Flickr sets, but not much else:

http://www.tomioka.de/e_55mm-Dateien/e_55m_tominon.htm

Ricardo Miranda · Sep 25, 2015

but I just want to use it with my Canon 5D Mk III.

Oh dear!
Is there a problem in using a M42 body and some nice film?

Norkusa · Sep 25, 2015

Ricardo Miranda said:
Oh dear!
Is there a problem in using a M42 body and some nice film?

Of course not...I already have several M42 bodies + a M42 to K-Mount adapter for my LX's. I just want to use this Tomioka with my DSLR.

whlogan · Sep 25, 2015

Someonenameddavid · Sep 25, 2015

Would using the m42 to k-mount, then k-mount to eos work?

Norkusa · Sep 25, 2015

Someonenameddavid said:
Would using the m42 to k-mount, then k-mount to eos work?

I thought about that but I don't have a k-mount to EOS adapter. I just bought a flange-less EOS adapter off Ebay....if that doesn't work, I guess I'll get a k-mount adapter and give that a try.

Yan Zeng · Jun 18, 2022

Hi Norkusa,
This Tomioka Kogaku 55mm/1.2 is amazing!
I found another post "Very Rare Tominon Tomioka 'Kogaku' 55mm f/1.2 m42 Lens" from you. Would you please kindly reply me if it is still available?

Cheers,

xkaes · Jun 18, 2022

FYI, the 55mm, 57mm, 58mm f1.2 lenses -- from Tomioka/Yashica, Minolta, Konica, etc. -- are all very soft wide open. BUT, FYI, when combined with a 2X tele-converter, they make great 110-115mm f2.4 portrait lenses.

Paul Howell · Jun 19, 2022

If you have M42 bodies shoot a roll of color and decide for yourself, what I may like may be your cup of tea. In terms of your question about fitting a DSLR you might want to post in the digital capture threads.

Some questions about the Tomioka Auto Tominon 55mm f1.2 (m42)

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