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Sigma MC-21 Mount Converter Announced for SA and EF Lenses

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Sigma announced a new MC-21 mount converter for using Sigma SA-mount and Sigma EF-mount lenses on L-mount mirrorless cameras.

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.

Sigma MC-21 Mount Converter Announced for SA and EF Lenses

The MC-21 increases the number of Sigma lenses that can be used with the L-Mount system by 29 lenses:

Sensor Size Product
35mm full frame
12-24mm F4 DG HSM Art
14-24mm F2.8 DG HSM Art
24-35mm F2 DG HSM Art
24-70mm F2.8 DG OS HSM Art
24-105mm F4 DG OS HSM Art
60-600mm F4.5-6.3 DG OS HSM Sports
70-200mm F2.8 DG OS HSM Sports
100-400mm F5-6.3 DG OS HSM Contemporary
120-300mm F2.8 DG OS HSM Sports
150-600mm F5-6.3 DG OS HSM Sports
150-600mm F5-6.3 DG OS HSM Contemporary
14mm F1.8 DG HSM Art
20mm F1.4 DG HSM Art
24mm F1.4 DG HSM Art
28mm F1.4 DG HSM Art
35mm F1.4 DG HSM Art
40mm F1.4 DG HSM Art
50mm F1.4 DG HSM Art
70mm F2.8 DG MACRO Art
85mm F1.4 DG HSM Art
105mm F1.4 DG HSM Art
135mm F1.8 DG HSM Art
500mm F4 DG OS HSM Sports
APS-C
17-70mm F2.8-4 DC MACRO OS HSM Contemporary
18-35mm F1.8 DC HSM Art
18-200mm F3.5-6.3 DC MACRO OS HSM Contemporary
18-300mm F3.5-6.3 DC MACRO OS HSM Contemporary
50-100mm F1.8 DC HSM Art
30mm F1.4 DC HSM Art

1. Effective use of lens investment

Attaching the MC-21 to your collection of SIGMA SA mount and SIGMA’s CANON EF mount compatible lenses allows them to be used as L-Mount system lenses, promoting the effective use of valuable lenses already owned.

2. 29 interchangeable lenses available to be used for L-Mount cameras

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.

3. Fast and accurate auto focus

High precision AF photography in AF-S mode is achieved.
* Not compatible with AF-C mode.

4. Simple interface
Whether the mounted lens is compatible or not is instantly visible from the color and the on/off of the MC-21’s built-in LED. The LED also notifies the user when a lens firmware update is available.

5. Lens data is pre-loaded
Running the data pre-loaded in the MC-21 for each lens by the special control program, autofocus and aperture control have been optimized. Regarding lenses to be released in the future, data for operating these lenses via the MC-21 will be stored in the lens. It means no firmware updates of the MC-21 will be required to use those new lenses. In addition, the MC-21 also supports correction functions of camera such as peripheral illumination, chromatic aberration of magnification, and distortion.

● Comes with a tripod socket

Equipped with a socket for attaching the tripod※. Lenses not equipped with a tripod socket can be used by mounting the tripod to the MC-21.
※ The tool supplied makes attaching/detaching possible.

● The inside surface of the barrel is covered with flocking to eliminate internal reflections. 

To prevent a reduction in lens performance due to internal reflections, the inside surface of the barrel is covered with flocking.

● Inclusion in Exif data

Information such as lens type, focal length, F number, and other tags are embedded as Exif data in each image file.

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