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Sirui 20mm T1.8 1.33x anamorphic lens X mount neutral flare

Sirui

Sirui 20mm T1.8 1.33X S35 AF Anamorphic Lens X mount Neutral Flare

SKU CH-CXZX-ECRCT

A 20mm T1.8 anamorphic lens for APS-C Fujifilm X cameras that delivers a 1.33x squeeze, autofocus with eye tracking, and a 0.4m minimum focus distance

  • Cinematic widescreen look from 1.33x squeeze on Super35 sensors
  • Fast T1.8 aperture enables shallow depth and low-light shooting
  • 11-blade diaphragm creates smooth circular bokeh and neutral flares
  • Autofocus with STM motor supports eye tracking for video
  • 4 m close focus expands creative framing possibilities

Sirui 20mm T1.8 Anamorphic Lens

The Sirui 20mm T1.8 1.33X S35 AF Anamorphic Lens brings a cinematic widescreen look to APS-C and Super35 cameras. Its 1.33x horizontal squeeze produces a distinctive 2.4:1 aspect ratio without cropping, delivering the horizontal flares and oval bokeh associated with professional film production. The neutral flare variant renders highlights cleanly for a subtle, controlled aesthetic.

Filmmakers needing autofocus on anamorphic

This lens suits solo operators and gimbal users who require fast, accurate autofocus with eye-tracking support. The STM stepping motor enables smooth focus transitions during video and reliable subject acquisition for stills. Shooters who rely exclusively on manual-focus workflows or need a full-frame image circle should consider other options.

1.33x squeeze on Super35 sensors

The 1.33x horizontal compression is designed for Super35 and APS-C formats, yielding a 22mm full-frame equivalent horizontal field of view. On larger sensors the squeeze factor changes the final aspect ratio, while on smaller sensors the effective width narrows. Matching the squeeze to the sensor size determines whether the footage delivers the intended cinematic proportions.

Highlights

  • Cinematic widescreen look from 1.33x squeeze on Super35 sensors
  • Fast T1.8 aperture enables shallow depth and low-light shooting
  • 11-blade diaphragm creates smooth circular bokeh and neutral flares
  • Autofocus with STM motor supports eye tracking for video
  • 4 m close focus expands creative framing possibilities

Specifications

No published specifications for this item yet.

Questions about this item

What mount does the 20mm T1.8 1.33X anamorphic lens use?

The lens is built for Fujifilm X mount cameras and covers Super35/APS-C sensors.

How do you switch between autofocus and manual focus on this lens?

The STM stepping motor enables fast autofocus with eye tracking, and you can seamlessly toggle to manual focus for precise control.

How many aperture blades does the 11-blade diaphragm have and what flare option is included?

The diaphragm uses 11 blades for circular bokeh, and this version ships with neutral flare coating.

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