Effective use of lens investment
Attaching the MC-21 to your collection of 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.
The MC-21 increases the number of interchangeable lenses manufactured by SIGMA that can be used with the L-Mount system by 36 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.
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.
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.
• Fast and accurate auto focus
• High precision AF photography in AF-S mode is achieved. Note: Not compatible with AF-C mode.
• 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.
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.
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.
Notice on usage of the SIGMA Mount Converter MC-21 when it is used in combination with Panasonic’s LUMIX S1, LUMIX S1R, and LUMIX S1H
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 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
Cannot be used with Leica cameras (SL, CL, T, TL, TL2) released before the announcement of the L-Mount Alliance.
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
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
* The MC-21 is not necessary for native L-Mount lenses.
– Cannot be used in combination with teleconverter.
– Operations using other non-compatible lenses are not guaranteed.