Overview
Blending the cinematic appeal of a 2.35:1 widescreen format with the ease of subject-tracking autofocus, the Sirui 20mm T1.8 1.33x S35 AF Anamorphic Lens delivers a wide-angle perspective tailored for Super 35 sensors. Its 1.33x anamorphic squeeze and fast T1.8 aperture offer impressive low-light capabilities and enable beautifully isolated subjects with distinct oval-shaped bokeh.
Advanced Autofocus
- STM stepping motor for smooth, silent autofocus
- Eye-tracking autofocus for reliable subject tracking
- AF/MF switch to toggle between autofocus and manual focus
- AF-Lock button to hold focus or recall custom focus settings
Optical Performance
- 37mm image circle covers Super 35 sensors or full-frame with vignette
- T1.8 to T22 aperture for low-light performance and depth of field control
- 15.7″ minimum focus distance for close-up shots
- Aspherical lens element minimizes chromatic aberration
STM stepping motor, fast focus/tracking
Eye-tracking
What’s in the Box
- Sirui 20mm T1.8 1.33x S35 AF Anamorphic Lens
- Carrying Pouch
- Carrying Strap
- Front Lens Cap
- Back Lens Cap
- Limited 18-Month Manufacturer Warranty
Specifications
| Maximum Aperture |
T1.8
|
| Minimum Aperture |
T22
|
| Lens Mount |
Micro Four Thirds
|
| Interchangeable Mount |
No
|
| Horizontal Squeeze (Anamorphic) |
1.33x
|
| Flare Color |
Blue
|
| Lens Format Coverage |
Super35/APS-C
|
| Image Circle |
37.0 mm
|
| Angle of View |
Super 35
Horizontal: 85.6° Vertical: 44.2° |
| Focus Scales |
No
|
| Optical Design |
16 Elements in 12 Groups
|
| Filter Thread |
77 mm x 0.75
|
| Minimum Focus Distance |
1.3′ / 0.4 m
|
| Aperture/Iris Blades |
11
|
| Image Stabilization |
No
|
| Gear Standard |
MOD
|
| Gear Rotation |
Focus: 360°
|
| Electronic Communication |
Yes
|
| Camera Connection |
1 x USB-C Firmware
|
| Diameter |
Focus Ring: 3.4″ / 86.4 mm
Iris Ring: 3.1″ / 80 mm |
| Length |
3.53″ / 89.75 mm
|
| Weight |
1.1 lb / 479.5 g
|



















