SKU: 23716437290

SIRUI 20mm T1.8 1.33X S35 Frame Autofocus Anamorphic Lens

Sale price$269.55 Regular price$299.50
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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.
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
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)
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
Lens
2
Package Box
3
Pouch
4
Strap
5
Front Lens Cap
6
Back Lens Cap
7
Warranty Card
Specifications
Model
20mm T1.8 1.33x Auto Focus
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)
E: 90.95/3.58 X: 91.25/3.59
MFT: 89.75/3.53 L: 88.35/3.48
Weight (g/lb)
(Without Lens Caps)
E: 489.3/1.08 X: 488.4/1.08
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:
  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: 23716437290

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4.2 ★★★★★
Based on 312 reviews
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Pawtucket, US
★★★★★ 2
Side sleeper- lost loft within 2 weeks
Size: Standard/Queen (Pack of 1), Style: High Loft (6"-7")
Side sleeper and within 2 weeks this pillow has lost its loft and has become lumpy. I have spent so much money trying to support my neck and shoulders, this unfortunately is not it. I will continue my search and return this one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
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Verified Purchase
Ashley
Lowell, US
★★★★★ 4
Mixed Feelings on the Saatva Pillow - A Comprehensive Review
Size: King (Pack of 1), Style: High Loft (6"-7")
Updated Edit (June 2024) : In my quest to find the perfect pillow, I initially purchased the high loft version of this pillow, but it turned out to be a bit too high for my liking. I then decided to try the standard size, and I like it much better! The pillow can still get lumpy and requires fluffing, but opting for the standard lower loft has definitely improved my experience with it. While I still use this pillow occasionally, I generally stick with my Purple Harmony pillow more. Changing my rating to 4 stars. --- Background: Over the past 2 years, I have embarked on a journey to find the perfect pillow, testing over ten different options, including numerous high-end brands. My latest trial was the Saatva pillow, renowned for its rave reviews. Expectations vs. Reality: Despite its widespread acclaim, my experience with the Saatva pillow did not meet my expectations. I opted for the higher loft variant, aligning with my general preference, yet I found it too high of a lot even as a primary side sleeper. Material and Comfort: The Saatva pillow, composed of both latex and down alternative, presented a lumpy texture. This inconsistency resulted in varied support depending on the position of my head. Unlike my regular down alternative pillow, the Saatva required frequent re-fluffing and adjusting throughout the night. Comparison and Value: Considering its price and the overwhelming number of positive reviews, my disappointment was notable. Surprisingly, a more affordable down alternative pillow from Amazon outperformed the Saatva in terms of support and comfort, despite the latter's use of higher quality fabrics and its significantly higher cost. Final Verdict: This pillow was one of the last in my quest to discover the "best" pillow. Sadly, it ranks in the lower ranks among the high-end, expensive pillows I've tried. I preferred the Purple Harmony pillow over the Saatva, albeit with reservations about the Purple Harmony as well. Conclusion: The Saatva pillow, while undoubtedly high-quality and possessing comfortable aspects, did not live up to my expectations, landing it in my pile of unused pillows. It may suit others, but for me, I only give it a 3 out of 5 stars rating.
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Reviewed in the United States on November 26, 2023
M
Verified Purchase
Megan
Birmingham, US
★★★★★ 5
Wonderful!
Size: Standard/Queen (Pack of 1), Style: High Loft (6"-7")
I ordered the loftier version of the pillow and I love it! I'm a side sleeper and I've been having pillow issues over the last few years where I swear every pillow is either too tall, too thin, too soft to provide support, to firm and hurts my ears, or the stuffing is too slick or something and migrates away from wherever I put my head. It's been... A time. But this pillow has been wonderful! I've been using it for a couple weeks now and it's the perfect height for me! The latex inner chamber provides some much needed support, but the softer outer chamber gives me enough cushion to keep my ears from aching. I will say that, while this is the perfect height for me, personally, I think that if you're someone who prefers a pretty lofty pillow, that this might not be tall enough for you. I ordered the taller version, and it feels right for me, but I've noticed in my pillow buying extravaganza that even pillows that everyone else loves that are designed for side sleepers are usually just too tall for me. So if this pillow is right for me, and you prefer a pretty lofty pillow, I really bet that this won't be tall enough in that case. It's definitely more of a medium loft, rather than a very high loft
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Reviewed in the United States on June 20, 2024
E
Verified Purchase
Erin Allen
Pawtucket, US
★★★★★ 5
Read this review. This pillow saved me.
Size: Standard/Queen (Pack of 1), Style: High Loft (6"-7")
I have to testify about this pillow, my brothers and sisters. Ever since I hit my 30s, my body has gone down. Aches and pains. Pops. Crackles. Snaps. It’s ridiculous. Over the last 2 years, I have managed to injure a muscle in my shoulder and the pain is unbearable when it is inflamed. I finally narrowed it down to the pillow I was sleeping on. I have an attachment to a pillow I’ve owned for over 20 years - that’s another story. I could fold it 3 times and it was finally thick enough to support my head. My shoulder got so tore up recently that I had to go through 2 rounds of steroids plus round the clock ibuprofen. Waking up in the night, the whole ordeal. I ordered this pillow after much research all over the internet. I was appalled by the $165 price ticket. But when you’re in that level of pain, you’re just about willing to do whatever it takes. The first night I immediately noticed I got more consecutive hours of sleep than I had in weeks. A week later and my shoulder is pain free. I could’ve cried. The height of this pillow stabilizes my neck and shoulders perfectly. It is firm, but gives and contours to your neck and head. It’s a heavy pillow but I don’t even care. Truly I don’t think I’ll ever go back. This pillow has saved my shoulder and I’ll never stop thanking God for it. If you’re experiencing back, shoulder, or neck pain and are considering this pillow, just order it. Please. Just do it. I’m forever changed. But I’m still keeping 20 year old pillow… just for sentimental purposes. 😂
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Reviewed in the United States on September 3, 2025
J
Verified Purchase
Jacky Liu
Alexandria, US
★★★★★ 5
Really good pillows
Number of Items: 1, Number of Items: 1
I’ve been using this pillow for a while now and it’s honestly one of the most comfortable pillows I’ve tried. It has a soft, cloud-like feel but still gives enough support for my neck and shoulders. I’m a side sleeper and it keeps its shape well through the night. The material feels high quality, and it doesn’t go flat like cheaper pillows. Definitely improved my sleep quality and worth the purchase.
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Reviewed in the United States on May 12, 2026

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