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Warranty
Free replacement within 3 years for non-human product defects.
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1.33x S35 Frame
Auto Focus Anamorphic Lens
20 / 40 mm T1.8
WATCH INTRO
1.33x S35 FrameHighlightHear from the community1.33x Constant Squeeze RatioSTM Auto FocusT1.8 Fast ApertureBlue Flare VS Neutral FlareLightweightDistinctive BokehTwo Focal Length Sets, One Consistent SpecConvenient Operation
"But I'd rather use this lens as a night lens. For example, I shot night scenes with this lens in Osaka, and I really liked the results. It looks like real cinema."
RICH Photography
videographer & creator 47.7k subscribers
"Sirui has kept this kind of autofocus line still cinema based. The gears are still located in the same place between the 20 and the 40 mm."
Wes Perry
commercial photographer 38.7k subscribers
"Overall, this is phenomenal lens when it comes to usability and handling. Compact size, keeps it real tight to the camera body, super easy to use on a gimbal, very tight center of gravity."
Pascal Basel
videographer 214k subscribers
"The fact that Sirui brings out a second anamorphic autofocus lens relatively shortly after the initial one tells me that they are serious about it. What gives me hope that we will see more lenses like this in the future."
1 / 5
1.33x Constant Squeeze Ratio
The lens will produce a wide-screen aspect ratio of 2.35:1 in 16:9 shooting mode. This dynamic capability transforms your visuals into a captivating cinematic experience, highlighting intricate details and delivering accurate colors that will engage your audience and elevate your productions to a professional standard.
STM Auto Focus
Advanced STM motor is added to achieve fast, accurate autofocus and eye focus, allowing you to focus on the subject during photo taking or follow the subject during video recording.
Object Tracking
Eye Focus
T1.8 Fast Aperture
T1.8 fast aperture, ensuring ample light transmission even in low-light
conditions, providing extremely shallow depth of field and powerful bokeh
effect to highlight the subject
Blue Flare VS Neutral Flare
Two flare styles for different shooting scenarios: Blue flare suits sci-fi, mystery, and music video scenes; Neutral flare adapts its color to the light source, ideal for commercial, interview, and emotional shoots.
Blue Flare
Neutral Flare
Lightweight
Compatible with gimbals, car rigs and suitable for handheld shooting.
Car
Handheld
Gimbal
Distinctive Bokeh
The 40mm produces a distinctive hexagonal bokeh when wide open. Stopped down to T2.4, both the 20mm and 40mm shift into the signature 1.33x elliptical bokeh, delivering the classic anamorphic look.
Bokeh
Hexagonal Elliptical Bokeh
Two Focal Length Sets, One Consistent Spec
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.
Convenient Operation
Click ON/OFF
Switch between clicked and declick aperture adjustment for greater flexibility in both photography and videography.
AF/MF Button
Quick switch between auto and manual focus with a single button to adapt to various shooting scenarios.
AFL Button
Available on E/L-Mount for the 20mm and E/L/Z/MFT mounts for the 40mm. One button locks the focus distance in place, preventing accidental shifts.
360° focus throws
An extra-long focus throw delivers finer manual control for precise, accurate focusing every time.
Electronic contact for EXIF transfer
Built-in electronic contacts automatically transmit EXIF data for easy reference and management in post.
Aluminum alloy shell
A lightweight yet rugged aluminum alloy housing built to handle demanding shooting environments.
Filter size 77mm
Both focal lengths share the same 77mm filter thread, so you can use the same filters across lenses without buying extras.
Firmware update via Type-C
Update firmware easily through the USB-C port to unlock the latest features and performance improvements.
Film in Motion
Street
Portrait
Landscape
Documentary
Packing List
Single Lens（20mm）
Lens × 1
Pouch x1
Rear Lens Cap x1
Front Lens Cap × 1
Strap x 1
Warranty Card x 1
Single Lens（40mm）
Lens x 1
Pouch × 1
Rear Lens Cap × 1
Front Lens Cap × 1
Strap × 1
Warranty Card x 1
Specifications
Lens
Model
T1.8 1.33xAuto Focus Anamorphic Cine Lens
40mm T1.8 1.33xAuto Focus Anamorphic Cine Lens
Lens Format Coverage
S35/APS-C
S35/APS-C
Max Aperture
T1.8
T1.8
Min Aperture
T22
T22
Lens Structure
16 Elements in 12 Groups (Including 5 Cylindrical Lenses and 1 Aspherical Lens)
16 Elements in 12 Groups (Including 5 Cylindrical Lenses and 1 Aspherical Lens)
Up to 68% off
Up to 52% off
20% off
Up to 40% off
