Many conventional anamorphic lenses struggle with fast focusing as they do not have autofocus. The SIRUI 20mm T1.8 1.33x anamorphic lens, on the other hand, has an STM stepper motor that ensures fast, precise and smooth autofocus.
It also supports eye tracking, which ensures stable and precise focus even during high-speed shooting or video recording - to capture every decisive moment clearly.
STM stepping motor, fast focusing & precise tracking
Open up a new level of photography and movie production.
Switch seamlessly between autofocus and manual focus to respond flexibly to different shooting scenarios - and achieve professional-level cinematic quality.
With a horizontal field of view equivalent to a 22mm full-frame lens, this wide-angle lens captures expansive landscapes, breathtaking starry skies and tight interiors with ease.
0minimum focusing distance The 0.4m minimum focusing distance breaks through the technical limitations of conventional anamorphic lenses. In combination with the fast T1.8 aperture, it increases the depth effect and spatial perception - and thus enables visually immersive shots with impressive impact.
Thanks to the constant 1.33x compression factor, this lens produces an impressive 2.35:1 widescreen format in 16:9 mode - with optimum sensor utilization for a truly immersive viewing experience.
The lens with a maximum image circle of 37 mm is ideally suited for S35 sensors and covers almost all full-frame cameras. However, some vignetting may occur when used on full-frame cameras.
The fast T1.8 aperture ensures that more light falls on the sensor so that the ISO value can be reduced and a pure night scene is created. It also has 11 aperture blades. Even in low light conditions, you can achieve excellent images with a sharp subject, blurred background and soft bokeh.
| General | |
|---|---|
| Type | Anamorphic cine lens |
| Lens type | Fixed focal length |
| Colour | black |
| Features | |
|---|---|
| Material | Aluminum alloy |
| Image sensor | |
|---|---|
| Sensor format | APS-C |
| Electronics | |
|---|---|
| Autofocus | ✔ |
| Lens | |
|---|---|
| Bayonet mount | Sony E |
| Focal length | 20 mm |
| max. light intensity | T1.8 |
| Number of blades | 11 |
| Opt. composition (groups/elements) | 16 elements in 12 groups |
| min. Close-up | 40 cm |
| Filter thread | 77 mm |
| Dimensions | |
|---|---|
| Total length | 88.35 mm |
| Diameter | 86.4 mm |
| Weight (incl. battery and memory card) | 489.3 g |
| Other features | |
|---|---|
| Functions | AF/MF switch, click (on/off), AFL button, focusable range 360° |
| Interesting | Lens format coverage: S35/APS-C |
| Connectivity | USB Type C |
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