FF S 20mm F4.0 C-Dreamer is an ultra-wide-angle shift lens. The amount of shift is ±11mm for full-frame cameras and ±8mm for medium format cameras, making it super easy to capture architectural and interior photography in a corrected perspective.
The maximum shift amount of the lens is ±11mm for full-frame camera and ±8mm for medium format camera (e.g. Fujifilm GFX / Hasselblad XCD). Sufficient shift capability allows photographers to correct converging vertical lines created by distance.
The shift function of the FF S 20mm F4.0 C-Dreamer is a vital tool for photographers who demand absolute control over perspective. By allowing you to keep the camera perfectly level while adjusting the frame, it eliminates "converging verticals" at the source.
FF S 20mm F4.0 C-Dreamer has 16 elements in 11 groups with 2 aspherical elements and 3 ED elements, bringing impressive control on chromatic aberration and ensuring the image sharpness is consistent from the center to the edge.
The 14-blade aperture creates smooth and circular bokeh, the effect is pleasantly astonishing in architecture photography.
FF S 20mm F4.0 C-Dreamer is designed with 82mm filter thread. The screw-in filter can be used which is cheaper, lighter, and more compact compared to obtaining a separate filter holder.
| Name | FF S 20mm F4.0 C-Dreamer |
| Format | Full Frame |
| Focal Length | 20mm |
| Aperture Range | f/4 – 22 |
| Angle of View | 94.4° |
| Lens Structure | 16 elements in 11 groups (2 aspherical elements and 3 ED elements) |
| Aperture Blades | 14 |
| Image Circle Diameter | Ø 65mm |
| Min. focusing Distance | 25cm |
| Max. Magnification | 0.17x |
| Focus Type | Manual (MF) |
| Filter Thread | ø82mm |
| Dimensions | About Ø 95mm * 91mm |
| Weight | About 747g |
| Mounts | Canon RF/ Canon EF / Nikon Z / Nikon F / Sony E / Nikon Z / XCD / GFX |
MTF
Optical Chart
©Ning Yun
FF S 20mm F4.0 C-Dreamer
©Zhang Hao
FF S 20mm F4.0 C-Dreamer
©Wu Wei
FF S 20mm F4.0 C-Dreamer
©Jiang Ji hang
FF S 20mm F4.0 C-Dreamer
©Jiang Ji hang
FF S 20mm F4.0 C-Dreamer
©Zhang Hao
FF S 20mm F4.0 C-Dreamer
©Wu Wei
FF S 20mm F4.0 C-Dreamer
©Wu Wei
FF S 20mm F4.0 C-Dreamer
©Jiang Ji hang
FF S 20mm F4.0 C-Dreamer
The rotatable ring outside is specifically helpful to retain the axis of the image when changing orientations and shifting. It is especially important to achieve perfect stitching for panorama photography, the shift lens support makes it much easier.
