The Sigma 20mm f/1.8 EX DG is a fast-aperture wide-angle prime for Canon full-frame cameras. Key features include:
Fast and wide
Rear focusing
7-inch minimum focusing distance
Good for emphasizing center subjects
Founder & CEO
This is a rather controversial lens. On the positive side, it has a very wide aperture, which is rather unique for a wide angle lens. The lens is large in size for a wide angle prime, especially in...
Angle of View | 94.5 degrees |
Aperture | f1.8-22 |
Aperture Blades | 9 curved, circular aperture |
Aspherical Elements | 2 |
Autofocus | Autofocus |
Brand | Sigma |
Compatibility | Crop and Full Frame |
Diameter | 3.5" |
Filter Size | 82.0mm (nonrotating front element) |
Filter Style | nonrotating front element |
Focal Length | 20.0-20.0 |
Focusing System | Internal, A/MF switch and clutch, micro motor |
Groups/Elements | 11/13 |
Hood Included | Yes |
Hood Type | LH875-02 548 |
Image Stabilization | No |
Item Type | Lens |
Length | 3.4" |
Lens Type | Wide Angle |
Low Dispersion Elements | 0 |
Max Aperture | 1.8 |
Maximum Magnification | .25x |
Minimum Aperture | 22.0 |
Minimum Focusing Distance | 0.75feet |
Mount | Canon EF |
Weather Resistant | No |
Weight | 1.1 lb. |
Zoom Method | N/A |
Angle of View | 94.5 degrees |
Aperture | f1.8-22 |
Aperture Blades | 9 curved, circular aperture |
Aspherical Elements | 2 |
Autofocus | Autofocus |
Brand | Sigma |
Compatibility | Crop and Full Frame |
Diameter | 3.5" |
Filter Size | 82.0mm (nonrotating front element) |
Filter Style | nonrotating front element |
Focal Length | 20.0-20.0 |
Focusing System | Internal, A/MF switch and clutch, micro motor |
Groups/Elements | 11/13 |
Hood Included | Yes |
Hood Type | LH875-02 548 |
Image Stabilization | No |
Item Type | Lens |
Length | 3.4" |
Lens Type | Wide Angle |
Low Dispersion Elements | 0 |
Max Aperture | 1.8 |
Maximum Magnification | .25x |
Minimum Aperture | 22.0 |
Minimum Focusing Distance | 0.75feet |
Mount | Canon EF |
Weather Resistant | No |
Weight | 1.1 lb. |
Zoom Method | N/A |