SIRUI 20mm T1.8 1.33x S35 Autofocus Anamorphic Lens

Traditional anamorphic lenses often struggle with quick focus acquisition due to the lack of autofocus. The SIRUI 20mm T1.8 1.33x anamorphic lens, equipped with an STM stepping motor, delivers fast, accurate, and smooth autofocus.

It also supports eye-tracking, ensuring a stable and precise focus lock, even during high-speed photography or video recording, capturing every decisive moment with clarity.

AF & MF Focus Modes

Total Creative Control

Seamlessly switch between autofocus and manual focus to meet diverse shooting demands and achieve professional-grade cinematic visuals.

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 indoor spaces with ease.

Breaking the technical barriers of anamorphic lenses, the 0.4m minimum focus distance, combined with a fast T1.8 aperture, enhances depth and spatial perception, creating visually immersive shots with striking impact.

Wide Angle

Horizontally Equivalent to Full Frame

Fast Aperture

Minimum Focus Distance

20mm

About 22mm

T1.8

0.4m

With a constant 1.33x squeeze factor, this lens delivers a stunning 2.35:1 widescreen cinematic aspect ratio in 16:9 mode, maximizing sensor utilization for a truly immersive viewing experience.

Lens with max image circle of 37mm is most suitable for S35 or almost covers all full frame cameras. Certain amount of vignetting will occur when used in full frame cameras.

20mm Image Circle 37mm

Image Circle 43.3mm

*Aperture value undering wide open

Fast T1.8 aperture makes sure more light enters the sensor so that it can reduce ISO and deliver a pure night scene.

Besides, there are 11 aperture blades included. Even in low-light situation, you can get outstanding image with sharp subject, blurred background and soft bokeh.

Soft Bokeh

Blurred Background

Aspherical Lens

Cylindrical Lenses

1

5

Reduce weight and correct chromatic aberration.

Control light distribution and adjust aspect ratio.

Classic
Blue
Flare

Suitable for sci-fi, mystery and music video scenes.

Neutral Flare

Adapt to light sources for natural and warm commercial or portrait shooting.

Unique lemon-shaped oval bokeh at fast aperture

Fast Auto Focus

Image with sharp subject and dreamy bokeh

Weighing only 480g with a compact 96mm length, this lens is perfect for handheld, vehicle-mounted, or gimbal-assisted shooting.

(E Mount)

Car

Handheld

Gimbal

All lenses in the series feature identical gear positions, a uniform 77mm filter thread, and consistent color tones. This ensures effortless lens swapping, even when shooting with a gimbal, without the need for accessory readjustments.