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Mamiya Sekor C 110mm f/2.8
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PostPosted: Mon May 09, 2022 12:38 pm    Post subject: Mamiya Sekor C 110mm f/2.8 Reply with quote
Any opinions on this lens? It's the version for 645, not 67. I have the opportunity to buy one, but there's very little info available online.


PostPosted: Mon May 09, 2022 1:42 pm    Post subject: Reply with quote
It's a not very common lens for the 645, and quite sought after. That alone suggests it to be useful. I would immediately buy it, even though I've never been using one! Why?

Several normal to tele lenses from the Sekor C and Sekor A series I own are very well corrected, e. g. the Sekor C 4/80mm Macro (no CAs at all visible on 43 MP FF), the Sekor A 4/120mm Macro (no CAs at all visible on 43 MP FF), the Sekor C 4/210mm (better than most vintage 4/200mm lenses and comparable to the AiS Nikkor 2.8/180mm ED), and the Sekor C 5.6/300mm ULD (as good as the very best vintage 300mm lenses such as the Nikkor 4.5/300mm ED "non-IF", the Canon FL 5.6/300mm Fluorite and the Canon FD 2.8/300mm Fluorite).

I would be surprised if the Sekor C 2.8/110mm was an outlier ...

S


PostPosted: Mon May 09, 2022 3:04 pm    Post subject: Re: Mamiya Sekor C 110mm f/2.8 Reply with quote
caspert79 wrote:
Any opinions on this lens? It's the version for 645, not 67. I have the opportunity to buy one, but there's very little info available online.


I have one. The positives are great sharpness and pleasing rendering.
The negatives are size and weight compared to a full frame lens but it's not too bad. The focusing ring is not smooth, needs new lube probably. This is worth checking
It was about 150 EUR from Japan.



I made two threads about it:

http://forum.mflenses.com/mamiya-sekor-c-110mm-f2-8-t75772.html

http://forum.mflenses.com/100mm-test-for-fun-t80591.html


PostPosted: Wed May 11, 2022 8:55 pm    Post subject: Reply with quote
Thanks for your thoughts. I finally bought it. Mechanically perfect. Backside of front element has light fungus around the edges. Doesn't look alarming to me and I'll probably try to remove it.


PostPosted: Sat May 21, 2022 2:44 pm    Post subject: Reply with quote
Some first test images:

MamiyaSekorC110mmf28 by devoscasper, on Flickr

MamiyaSekorC110mmf28_7 by devoscasper, on Flickr

MamiyaSekorC110mmf28_6 by devoscasper, on Flickr

MamiyaSekorC110mmf28_5 by devoscasper, on Flickr

MamiyaSekorC110mmf28_4 by devoscasper, on Flickr

MamiyaSekorC110mmf28_2 by devoscasper, on Flickr

MamiyaSekorC110mmf28_1 by devoscasper, on Flickr

Sorry for the uninspiring pictures Smile. I like how this lens renders, a keeper probably!
Have to look for another adapter though. Can't quite reach infinity focus with my cheap one, had the same with the Mamiya 120/4 macro.


PostPosted: Mon May 23, 2022 7:33 pm    Post subject: Reply with quote
Looks like a fine specimen!


PostPosted: Mon May 23, 2022 9:55 pm    Post subject: Reply with quote
Good and sharp rendering. Nicely soft bokeh but prone to drawing lines were anything with straight lines is in the background.


PostPosted: Tue Jun 07, 2022 7:36 pm    Post subject: Reply with quote
Some more images from my mother's garden:

MamiyaC11028_1 by devoscasper, on Flickr

MamiyaC11028_2 by devoscasper, on Flickr

MamiyaC11028_4 by devoscasper, on Flickr

MamiyaC11028_5 by devoscasper, on Flickr

MamiyaC11028_7 by devoscasper, on Flickr

I think I can confirm what D1N0 says: bokeh is definitely a strong point of this lens, as long as you watch out with straight lines. The bokeh is also very uniform across the frame; probably an advantage of using a medium format lens on a full frame camera.
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