News: A reason to be happy – News about Sigma at the CP+


In one of my previous blog articles I wrote about the CP+ Camera & Photo Imaging Show in Japan. Some particularly positive news that was presented and comes from SIGMA is its MC-11 Mount Converter which allows SIGMA “SA” and SIGMA “Canon EF” mounts on interchangeable lenses to be used on a Sony device with an E-mount. Today I’d like to write a few words about this piece of news.

The converter is of great advantage for all photographers whose equipment includes a Sony E-mount camera system, as they get provided with a greater range of good interchangeable camera lenses by SIGMA that, depending on the mount, can then also be used on other camera systems (SIGMA or Canon) without an adapter. Or in addition – now all those using second cameras with compatible interchangeable camera lenses will be able to use them on their Sony camera as well!

Design1_MountConverterMC-11

How do you find out whether an already existent interchangeable lens is compatible? That’s easy. It is shown right away on an LED display on the MC-11 Mount Converter. This will also tell you if the control data of the mount adapter need to be updated for the operation of the attached lens. The control data of the converter can be updated on a computer as soon as new compatible camera lenses are on the market.

Moreover the MC-11 uses a specifically designed control program to optimize the autofocus mode, the aperture control and other important features. It’s compatible with the camera functions ensuring edge illumination as well as amending chromatic aberration, distortions and other issues.

The MC-11 Mount Converter is so special because it’s a difficult task to develop a mount converter that matches both mechanical components as well as the software requirements of lenses and cameras with each other. But with the development of this mount converter SIGMA succeeded in overcoming an even greater challenge – that is, developing a functional mount converter that makes it possible to use interchangeable lenses for DSRL cameras on mirrorless cameras. For photographers using Sony cameras adding this particular innovation to their equipment is certainly going to be a lot easier now!

Produktabbildung_MountConverterMC-11Produktabbildung2_MountConverterMC-11Produktabbildung3_MountConverterMC-11

  1. Hi. Regarding compatible lenses, do you happen to know if basic functions (like aperture control) will still work for lenses not in the adapter’s database? Also, it would be great to learn of a source of image circle information for pre-existing SA lenses since they would obviously all have been designed for an APS-C sensor but maybe some will stretch to working full frame on the Sony Alpha range…..?

    Reply

    1. Hi Tim!

      Hi. Regarding compatible lenses, do you happen to know if basic functions (like aperture control) will still work for lenses not in the adapter’s database?

      That’s anyone’s guess. I’d imagine that Sigma will not promote the feature officially, but that many or most of SA or Canon EF lenses will work. Check this video out: https://www.youtube.com/watch?v=OiRzlydhkDE
      That Youtuber has not only tested pre Art/Sports/Contemporary Sigma lenses, but also Canon and Tamron lenses, most of which focus quite fast on his A7II (on an A7rII they should focus even faster). Focusing is the harder part to make work right, so I’d imagine that aperture control shouldn’t be a problem for the vast majority of lenses.

      Also, it would be great to learn of a source of image circle information for pre-existing SA lenses since they would obviously all have been designed for an APS-C sensor but maybe some will stretch to working full frame on the Sony Alpha range…..?

      Sigma’s lenses for the SA and Canon EF mounts are the same in regard to optics. Most of these lenses are full frame compatible, so there shouldn’t be an issue with FF sensors of the A7x series cameras. Even many of the newer lenses for APS-C are “overdesinged” for the purpose of bringing top-notch IQ when used on APS-C, which makes them capable of illuminating full frame sensors. The 18-35mm f/1.8, for example, is full frame compatible above 28mm or something like that. Unfortunately I don’t know of any database with image circle information.

      Reply

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