SKU: 59668861831

SIRUI 40mm T1.8 1.33X S35 Frame Autofocus Anamorphic Lens

$269.55 $299.50
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Description

SIRUI 40mm T1.8 1.33X S35 Frame Autofocus Anamorphic LensSTM Motor Fast Autofocus 40mm All around Focal Length 1. 33x Constant Magnification T1. 8 Fast Aperture Creamy Bokeh 623g Super Compact Two Optional Flares Blue Neutral Flare Cinematic Look Wide screen 2. 35: 1 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. Compared with manual focus anamorphic lens, this autofocus

STM Motor
Fast Autofocus
40mm
All- around Focal Length
1.33x
Constant Magnification
T1.8 Fast Aperture
Creamy Bokeh
623g
Super Compact
Two Optional Flares
Blue/Neutral Flare
Cinematic Look
Wide-screen 2.35:1
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. Compared with manual focus anamorphic lens, this autofocus lens is easy to operate, making run-and-gun shooting more efficient than ever.
Object Tracking
Eye Focus
SIRUI Autofocus Anamorphic Lens
Common Manual Focus Anamorphic Lens
Fast autofocus with STM motor.
Accurate autofocus helps save time.
Difficult manual focus operation. Focus puller is necessary sometimes. Adjust focus again when the subject changes position. Suitable for teamwork.
ideal for street, humanist, landscape, portrait photography, etc.
Horizontally equivalent
to full frame 42mm
1.33x Squeeze Factor
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
*When shooting 16:9, this lens offers a standard 2.35:1 aspect ratio.
Due to the lack of autofocus in traditional anamorphic lenses, it has often been challenging to quickly capture images during shooting. Additionally, if photographers want to achieve a widescreen aspect ratio, they typically need to crop the image, which often results in a significant loss of content.
Spherical Lens
Anamorphic Lens
The 40mm is designed to facilitate video and photography, featuring a manual/auto focusing switching function and an option to between stepped and stepless aperture settings.
AF / MF Switch
Click/ De-click Switch
By eliminating obvious perspective distortion, characters are presented in a more natural way, as if seeing right through your eyes.
Large aperture makes sure more light enters the sensor in low light situation so that it can reduce ISO and you can get a pure night scene. Even in low-light situation, you can get outstanding image with sharp subject, shallow depth of field, natural and soft bokeh.
T1.8 Fast Aperture
Two options-blue flare and neutral flare--for your choice.
Suitable for sci-fi, mystery and music video scenes.
Provide you with different flare color according to different light source, ideal for commercial, interview or emotional shooting scenarios.
The 40mm produces a distinctive hexagonal elliptical bokeh when the aperture is fully open,because its unique optical design and aperture blade structure. As you stop down to T2.4, the bokeh transitions into the signature 1.33x elliptical shape, delivering the classic anamorphic aesthetic. This flexibility allows you to achieve different bokeh styles depending on your creative needs.
Distinctive hexagonal elliptical bokeh @T1.8
1.33x elliptical bokeh @T2.4
It is suitable for portrait shooting or detail capturing. It is also convenient and flexible for you to shoot in tight space.
1 aspherical lens and 5 cylindrical lenses are included. And the unique characteristics of this lens provide you with cinematic look images with excellent resolution, well-controlled chromatic aberration and breathing.
Focus Distance Aspherical Lens Cylindrical Lens
Reduce weight and correct chromatic aberration Control light distribution and adjust aspect ratio
Compatible with gimbals, car rigs and suitable for handheld shooting.
Car
Handheld
Gimbal
Flexible shooting experience
Click ON/OFF
Stepless aperture or not
AF/MF Button
Switch between autofocus and manual focus
AFL Button
(E-Mount)
Autofocus lock/custom setting
Standard Gears, 360° focus throws
Electronic contact for EXIF transfer
Filter size 77mm & outer front diameter 80mm for matte box
Download the latest firmware and upgrade the firmware via Type-C mount
Native mounts: E, X, MFT – compatible with major cameras
Specifications
What's in the Box
1
Package Box
2
Pouch
3
Lens
4
Strap
5
Back Lens Cap
6
Front Lens Cap
7
Warranty Card
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 59668861831

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Teresa
Charlottesville, US
★★★★★ 5
Wood cutting boatds
Color: Carbonized, Size: 3-piece
These are great cuting boards. I love the different sizes. Great quality product, easy to use, easy to clean, sturdy, bamboo material is great.
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Reviewed in the United States on May 29, 2026
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Rawrr
Bozeman, US
★★★★★ 5
Don’t worry about the smell!
Color: Carbonized, Size: 3-piece
These are great for the price, though I’ve never had any desire or need to use the smallest one. They smell strongly of BBQ at first, but from what I’ve read that’s a natural result of a heat treatment used to increase it’s durability and dark color (the heat cooks the sugars in the bamboo which creates the scent). Anyways, I’ve had them for awhile now and the scent is long gone.
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Reviewed in the United States on June 8, 2026
A
Verified Purchase
Amazon Customer
Grantham, US
★★★★★ 5
Easy to use!
Color: Green
This has made my life easier. I like the battery last for long. And is easy to use!
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Reviewed in the United States on May 23, 2026
B
Verified Purchase
Barb K.
Charlottesville, US
★★★★★ 1
Won’t cut
Color: Green
I have bought two of these The first wouldn’t cut so it was returned and replaced with another one that also would not cut. Wouldn’t recommend buying these at all.
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Reviewed in the United States on May 5, 2026
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Heather Neal
Draper, US
★★★★★ 5
Can opener
Color: Green
Love, love, LOVE
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Reviewed in the United States on January 23, 2026

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