Sirui 20mm T1.8 1.33x Anamorphic Cine Lens, Micro Four Thirds Blue Flare

SKU: SR20AFMFTB MFR: 20AF133X-MB
Earn VIP Reward Points

Key Features

  • Capture stunning cinematic visuals with this 20mm T1.8 lens's unique 1.33x anamorphic squeeze.
  • Achieve a beautiful, wide aspect ratio and distinctive lens flares with this Sirui cine lens.
  • Enjoy exceptional low-light performance with the fast T1.8 maximum aperture for crisp footage.
  • Create professional-looking videos with enhanced bokeh and shallow depth of field using this lens.
  • The 20mm focal length is perfect for immersive storytelling and capturing expansive scenes.
  • Compatible with Sony E, Nikon Z, Fujifilm X, and MFT mounts, offering versatility for filmmakers.
See More Product Details

Product Options

Special Order?Estimated to Ship: 08/07/2025
Free Shipping

See Options

Qty
1

Protect your gear with Adorama Protect.* Learn more

2 Year

$69.99

3 Year

$94.99

4 Year

$119.99

Available to U.S. customers only.

Need help? Ask our experts.

Overview
Compare
Specs
Q&A

Questions & Answers

Reviews about this item

Review Summary

Sirui 20mm T1.8 1.33x Anamorphic Cine Lens, Specifications

  • Color

    Black

  • Available Lens Mount

    Sony E, Nikon Z, Fujifilm X, Micro Four Thirds

  • Available Flare Colors

    Blue, Neutral

  • Focal Length

    20mm

  • Maximum Aperture

    T1.8

  • Minimum Aperture

    T22

  • Interchangeable Mount

    No

  • Horizontal Squeeze (Anamorphic)

    1.33x

  • Lens Format Coverage

    Super35/APS-C

  • Focus Method

    Manual/Autofocus

  • Image Circle

    37mm

  • Angle of View

    Super 35
    Horizontal: 85.6 Degree
    Vertical: 44.2 Degree

  • Focus Scales

    No

  • Optical Design

    16 Elements in 12 Groups

  • Filter Thread

    77 mm x 0.75

  • Minimum Focus Distance

    1.3' (0.4m)

  • Diaphragm Blades

    11

  • Image Stabilization

    No

  • Gear Standard

    0.8 MOD

  • Gear Rotation

    Focus: 360 Degree

  • Electronic Communication

    Yes

  • Camera Connection

    1x USB-C Firmware

  • Diameter

    Focus Ring: 3.4" (86.4mm)
    Iris Ring: 3.1" (80mm)

  • Length

    Sony E: 3.58" (90.95mm)
    Nikon Z: 3.66" (92.95mm)
    Fujifilm X: 3.59" (91.25mm)
    Micro Four Thirds: 3.53" (89.75mm)

  • Weight

    Sony E: 1.08 lbs (489.3g)
    Nikon Z: 1.1 lbs (501.1g)
    Fujifilm X: 1.08 lbs (488.4g)
    Micro Four Thirds: 1.06 lbs (479.5g)

  • UPC Code

    6952060076379

About Sirui 20mm T1.8 1.33x Anamorphic Cine Lens,

Auto Focus, Precise Tracking
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.

Unlock A New Photography & Film Making Experience

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.

20mm Expansive Perspective

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.

0.4m Minimum Focus Distance Stunning Depth and Perspective
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-Screen Cinematic Aspect Ratio - No Cropping Required
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.

T1.8 Fast Aperture
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.

Choose Your Signature Flare - Blue or Neutral

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.

Stunning Bokeh
Unique lemon-shaped oval bokeh at fast aperture

Fast Auto Focus
Image with sharp subject and dreamy bokeh

Compact & Lightweight - Perfect for Solo Shooting
This lens is perfect for handheld, vehicle-mounted, or gimbal-assisted shooting.

Sirui 20mm T1.8 1.33x Anamorphic Cine Lens, Features

  • Fast, smooth autofocus with precise tracking & eye-focus
  • 20mm wide-angle, perfect for landscapes & starry skies
  • 0.4m minimum focus distance for stunning depth & perspective
  • 1.33x squeeze for cinematic 2.35:1 aspect ratio
  • Compact, lightweight ideal for solo or handheld shooting

Warranty Information

This product has a limited warranty of 12 months for parts and 72 months for labor.

Key Features

  • Capture stunning cinematic visuals with this 20mm T1.8 lens's unique 1.33x anamorphic squeeze.
  • Achieve a beautiful, wide aspect ratio and distinctive lens flares with this Sirui cine lens.
  • Enjoy exceptional low-light performance with the fast T1.8 maximum aperture for crisp footage.
  • Create professional-looking videos with enhanced bokeh and shallow depth of field using this lens.
  • The 20mm focal length is perfect for immersive storytelling and capturing expansive scenes.
  • Compatible with Sony E, Nikon Z, Fujifilm X, and MFT mounts, offering versatility for filmmakers.

What's in the box:

  • Sirui 20mm T1.8 1.33x Anamorphic Cine Lens
  • Carrying Pouch
  • Carrying Strap
  • Front Lens Cap
  • Back Lens Cap
  • Sirui 1 Year Limited Warranty