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Sirui 20mm T1.8 1.33x S35 AF Anamorphic Lens (Sony E, Blue Flares)

item #423970608

$359.40
Quantity:


Product Description

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

 

Sirui 20mm T1.8 Anamorphic AF 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 Sony E-mount 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.

Anamorphic Aesthetic
  • 1.33x squeeze factor for 2.35:1 images in 16:9 mode
  • Unique oval bokeh enhances subject separation and depth
  • Horizontal field of view equivalent to 22mm full-frame lens
  • Blue lens flares for cinematic effect
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
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
Practical Design
  • Uniform gear positioning with Sirui 40mm AF Anamorphic Lens
  • Compact (3.8" long) and lightweight (1.1 lb)
  • 360° focus throw with standard gearing
Versatile Compatibility
  • Compatible with Sony E-mount cameras
  • Standard 77mm front filter thread
  • Update lens firmware via female UCB-C por

Product Specification

Sirui 20mm T1.8 Anamorphic AF Specs

Key Specs
Focal Length
20mm
Maximum Aperture
T1.8
Lens Mount
Sony E
Lens Format Coverage
Super35/APS-C
Filter Thread
77 mm x 0.75
Image Stabilization
No
Electronic Communication
Yes
Maximum Aperture
T1.8
Minimum Aperture
T22
Lens Mount
Sony E
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
USB-CFirmware
Diameter
Focus Ring: 3.4" / 86.4 mm
Iris Ring: 3.1" / 80 mm
Length
3.58" / 90.95 mm
Weight
1.1 lb / 489.3 g
Packaging Info
Package Weight
2.385 lb
Box Dimensions (LxWxH)
7.3 x 5.7 x 5.5"

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