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Sigma MC-21 Mount Converter
  • The SIGMA Corporation is pleased to announce the new mount converter enhancing the extensibility of the L-Mount system.

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    The SIGMA MOUNT CONVERTER MC-21 allows SIGMA SA mount and SIGMA’s CANON EF mount interchangeable lens owners to use their lens investment on L-Mount camera bodies. The converter allows more freedom of choice for L-Mount cameras from SIGMA, Leica Camera and Panasonic, enhancing the extensibility of the L-Mount system.

    The MC-21 increases the number of interchangeable lenses manufactured by SIGMA that can be used with the L-Mount system by 29 lenses. Compatible with the autocrop function, mounting APS-C size image circle DC lenses to a camera body equipped with a 35mm full size sensor still allows immediate use for shooting.

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  • FROM WEBSITE : Notice on usage of the SIGMA MOUNT CONVERTER MC-21 when it is used in combination with Panasonic’s LUMIX S1 and LUMIX S1R Please note the following information when using the SIGMA MOUNT CONVERTER MC-21 in combination with LUMIX S1 and LUMIX S1R released by Panasonic Corporation.

    ・Only AF-S works in Autofocus Mode. AF-C cannot be selected. ・The Auto continuous operation cannot be used during video shooting. ・Touch AF cannot be used. ・With lenses incorporating MO (Manual Override), operation in manual mode is possible only after focusing. ・MF guide is not available. ・The image stabilization function inside the camera body and the lens cannot be used simultaneously. Please ensure only one of these is selected. ・The AF Function Button and the Focus Preset Button incorporated on some lenses cannot be used.

    Compatibility with other cameras When we announced the MC-21 on February 26th, 2019, we mentioned that it was compatible with cameras manufactured by Leica Camera AG. However, the specifications have changed and it will not be compatible with Leica’s existing L-Mount cameras. We sincerely apologize for the inconvenience this situation may have caused.

  • things I would love to know about the MC 21 combined with the S1 Lumix Camera:- - will it automatically crop non full frame lenses (e.g. 18-35 Sigma + 50-100) - Will Canon EF lenses work through the adaptor? I don't care too much for autofocus, but would EXIF data be transmitted as well as aperture control? Focal length data for the IBIS? - Will Manual EF lenses work through the adaptor?

  • March 29, 2019 – Sigma Corporation of America, a leading still photo and cinema lens, camera, flash and accessory manufacturer, today announced pricing and availability for the new Sigma Mount Converter MC-21, offering photographers a wider range of lens options for L-Mount cameras from Sigma, Leica and Panasonic. The Sigma MC-21 will start shipping in April 2019 and will be priced at $169.00 USD for Sigma SA-L mount and $249.00 USD for Canon EF-L mount.

    Features

    The Sigma Mount Converter MC-21 allows for Sigma’s SA mount and Canon EF mount lenses to be used on L-Mount camera bodies. By attaching MC-21 to a Sigma SA mount or Sigma Canon EF mount lens, it becomes compatible with the L-Mount camera system without compromising usability and image quality. The development of Sigma MC-21 increases the number of interchangeable lenses manufactured by Sigma to be used with the L-Mount systems by 29, offering a total of 40 lens choices, including 11 DG Art primes with native L-mount. The addition of MC-21 to the Sigma accessory lineup will increase the accessibility of the L-Mount system and further Sigma’s role in the strategic L-Mount Alliance alongside Leica and Panasonic.

    The full list of compatible lenses and technical specifications can be accessed here and product imagery can be downloaded here.

    Pricing

    The lower price for the Sigma MC-21 in Sigma SA-L mount reflects the company’s appreciation for the loyal Sigma camera users as the MC-21 in Sigma SA-L mount allows for Sigma SA mount lenses to be used on any L-Mount camera body. Eventually, Sigma will aim to replace its SA mount lenses with the native L-mount versions, but until then, Foveon shooters can rely on the existing offering of Sigma MC-21 at a lower price point to ease the transition to the new system.

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