Limited Availability｜ Other Products ｜Sirui 20mm T1.8 1.33x S35 AF Anamorphic Lens (Blue Flare)

Key Features

37mm Image Circle Covers S35 Sensors
Creates 2.35:1 Aspect Ratio in 16:9
Eye-Tracking Autofocus with STM Motor
T1.8-T22 Aperture
Blue Anamorphic Flares
Background Separation with Oval Bokeh
15.7" Minimum Focus Distance
AF/MF Select and AF-Lock Buttons
Compact, Lightweight Form Factor
Sony E-Mount | 77mm Front Filter Thread

 
Overview

Combining the cinematic quality of 2.35:1 widescreen imagery with the convenience of subject-tracking autofocus, this Sirui 20mm T1.8 1.33x S35 AF Anamorphic Lens is a versatile, wide-angle lens designed specifically for cameras with Super 35 sensors. With a 1.33x squeeze factor and T1.8 maximum aperture, the lens ensures exceptional low-light performance and allows for stunning subject isolation with its signature oval-shaped bokeh.
Powered by a precision STM stepping motor, the Sirui 20mm delivers smooth, accurate, and quiet autofocus—a rare feature in anamorphic lenses. With eye-tracking capability and buttons for both focus mode and autofocus lock, the lens provides complete creative control. A female USB-C port enables firmware updates, ensuring lasting performance. Compact and lightweight, the lens fits advanced technology and visual quality into a form factor ideal for handheld, gimbal, and run-and-gun shooting, making it a powerful tool for both independent creators and professional productions.
 
Key Specs

Maximum Aperture

T1.8

Minimum Aperture

T22

Lens Mount

Sony E/ Fujifilm X

Interchangeable Mount

No

Horizontal Squeeze (Anamorphic)

1.33x

Flare Color

Blue

Lens Format Coverage

Super35/APS-C (37 mm Image Circle)

Angle of View

Super 35Horizontal: 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

0.8 MOD

Gear Rotation

Focus: 360°

Electronic Communication

Yes

Camera Connection

USB-CFirmware

Diameter

Focus Ring: 3.4" / 86.4 mmIris Ring: 3.1" / 80 mm

Length

3.58" / 90.95 mm

Weight

1.1 lb / 489.3 g

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 1-Year Manufacturer Warranty
Brand:SiruiTags:20mm, anamorphic lens, photo lenses, Sirui 20mm T1.8 1.33x S35 AF Anamorphic LensMount:Sony E, FujiFilm X