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Description
SIRUI 20mm T1.8 1.33X S35 Frame Autofocus Anamorphic LensEXPANSIVE PERSPECTIVE S35 AUTO FOCUS ANAMORPHIC 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
EXPANSIVE PERSPECTIVE
S35 AUTO FOCUS ANAMORPHIC 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.
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.
Video Recording
STM stepping motor, fast focus/tracking
Eye-tracking
Unlock a new photography and film making experience
AF & MF Focus Modes
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.
20mm
About 22mm
T1.8
0.4m
Wide Angle
Horizontally Equivalent to Full Frame
Fast Aperture
Minimum Focus Distance
0.4m Minimum Focus Distance
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
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.
Restore
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.
20mm Image Circle 37mm
Image Circle 43.3mm
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.
Outstanding Optical Performance
16 Elements
in 12 Groups
in 12 Groups
High-quality cinematic image
Aspherical Lens*1
Reduce weight and correct chromatic aberration
Cylindrical Lens*5
Control light distribution and adjust aspect ratio.
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
Image with sharp subject and dreamy bokeh
Compact & Lightweight
Weighing only 480g with a compact 96mm length, this lens is perfect for handheld, vehicle-mounted, or gimbal-assisted shooting.
Handheld
Gimbal
Consistent Set Design Seamless Lens Swapping
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
AF/MF Button
AFL Button
(E/L-Mount)
(E/L-Mount)
Stepless aperture or not
Switch between autofocus and manual focus
Autofocus lock /custom setting
Standard gears, 360° focus throws
Electronic contact for EXIF transfer
Aluminum alloy shell
Filter size 77mm
Firmware update via Type-C
Native mounts: E, X, L, MFT compatible with major cameras
AF Auto Focus + MF Manual Focus Start Your Cinematic Trip
Compatibility
What's in the Box
1
Lens2
Package Box3
Pouch4
Strap5
Front Lens Cap6
Back Lens Cap7
Warranty CardSpecifications
Model
20mm T1.8 1.33x Auto Focus
Anamorphic Cine Lens
Anamorphic Cine Lens
Lens Format Coverage
S35/APS-C
Focus Length
20 mm
Max Aperture
T1.8
Min Aperture
T22
Lens Structure
16 Elements in 12 Groups (Including 5 Cylindrical Lenses and 1 Aspherical Lens)
Aperture Blade
11
Shooting Distance
0.4m（1.31ft）～∞
Focus Method
Manual/Auto
Max Magnification
1:15.4(V), 1:20.6(H)
F0V(APS-C)
38.974°(V), 73.906°(H), 78.324°(D)
Filter Thread
M77*P0.75
Focus Throws
360°
Max Diameter
∅86.4mm/3.4inch
Focus Ring Diameter
∅86.4mm/3.4inch
Aperture Ring Diameter
∅80mm/3.15inch
Motor
STM
AF/MF Switch
Click (ON/OFF)
AFL Button
Length (mm/inch)
(Without Lens Caps)
(Without Lens Caps)
E: 90.95/3.58 X: 91.25/3.59
MFT: 89.75/3.53 L: 88.35/3.48
MFT: 89.75/3.53 L: 88.35/3.48
Weight (g/lb)
(Without Lens Caps)
(Without Lens Caps)
E: 489.3/1.08 X: 488.4/1.08
MFT: 479.5/1.06 L: 494.5/1.09
MFT: 479.5/1.06 L: 494.5/1.09
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.4 ★★★★★
Based on 2404 reviews
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Product Reviews
★★★★★ 1
Defective toy and inconsistent quality.
Size: X-Large, Color: Raccoon, Size: X-Large, Color: Raccoon
My initial review was 5 stars based on my experience with a previous order (blue raccoon) and the fact my puppy was immediately interested in it. However, I did not give it to her to play with until this past Friday (May 21, 2026) because she had the first one I bought. In a matter of 2 days the seam on the back and at the base of the head unraveled and all of the stuffing was scattered all over the room. I thought I’d found some good, high quality, toys for her but apparently this one was defective because the first one had had a lot of use and I’d still in decent shape. This is too much money to pay for a dog toy that only lasts a day or two so be advised they aren’t all good.
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Reviewed in the United States on April 11, 2026
★★★★★ 5
Bigger, louder, crinklier, softer, than expected!
Size: X-Large, Color: Rabbit
My dog was gifted a collection of used toys and he really likes a very long stuffed pig which, unfortunately, another dog that is a destructive chewer, totally destroyed. I decided to break down and buy him another long stuffed toy today and since he's always blissfully watching rabbits in the yard and neighborhood I chose the rabbit version. This thing is huge which is great for him- he's 62 lbs and 7 months old and only half grown. He loves it, it has multiple LOUD squeakers, lots of crinkly spots, and fun ears/legs to grab hold off. He's a big fan and it's made with K9 Tuff Guard which LASTS. Super soft and easy to wash.
Update after 2 months- easy to wash and looks new after a washing. very durable so far, standing up to indoor and outdoor use. He is not a destructive chewer but whips them around, tramples on them, steps on them while running top speed and chomps on the annoying squeaker for hours. one squeaker has a hole and its tune is now slightly muted (thank god)
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Reviewed in the United States on August 24, 2019
★★★★★ 5
Absolute favorite toy for almost a year
My dog’s favorite toy for almost a year. It has held up amazingly. I’m sad it’s no longer available. Please bring it back!
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Reviewed in the United States on April 29, 2026
★★★★★ 5
Very well made!
Size: Small, Color: Bunny
This toy is great! Two squeakers and made to last even my Airedale. He doesn’t want to put it down.
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Reviewed in the United States on March 14, 2026
★★★★★ 5
Won't last forever, but my dog loves it
Size: X-Large, Color: Giraffe
My dog, a 90 lb black lab, LOVES these toys. He does prefer the raccoon to the giraffe, but he likes them both a lot. I originally got the raccoon on clearance at Target when looking for a long toy he could play with while he was in a cone recovering from surgery (he likes to be able to hold toys between his front paws and mouth/chew on them, so none of our regular squeaky footballs were long enough for that). He loved it so much I had to find more, so I found this giraffe from the same line of toys. He's a destroyer and he has been able to put a few holes in these toys if I'm not watching him, but they're pretty easy to sew if they need patching. My mother-in-law's dog came over and made a hole so big that the squeakers and lining all came out, but I sewed it back up and it's almost as good as new. They definitely won't last forever, but they have lasted longer than other soft toys we've had in the past.
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Reviewed in the United States on October 19, 2017