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The gunmetal gray Canon RF-mount Night Walker 35mm T1.2 S35 Cine Lens from Sirui offers an ultrafast T1.2 maximum aperture that is ideal for low-light capture. Designed to cover Super35/APS-C camera sensors, this prime lens features a lightweight, compact design with high image quality, cine-style gearings, and minimal breathing. The color tone, gear position, and size are consistent across the series, providing a unified look and enabling quick lens changes when using matte boxes and other accessories.
Ideal for Low-Light Shooting
The maximum T1.2 aperture enables you to capture low-light scenes using lower camera ISO settings.
Ideal for run-and-gun filmmakers.
Medium-Wide Prime
This medium-wide 35mm lens in the Night Walker series is ideal for documentary capture and portrait shots.
High Optical Performance
ED (extra-low dispersion) and high refractive index glass elements contribute to this lens' high optical quality.
Focus breathing is minimal, and aberration is strictly controlled.
Common Design Features
Lenses in the Sirui Night Walker cine lens series share common focus and iris gear ring positions.
Enables quick lens changes by reducing the need for follow focus units or iris motors to be repositioned.
Compact Form
This prime lens features a compact, lightweight design.
The aluminum alloy construction helps to protect the inner optical elements.
Focus Marks
Focus markings and measurements are provided in both feet and meters.
Sirui Nightwalker 35mm T1.2 S35 Cine Specs
Key Specs
Focal Length
35mm
Maximum Aperture
f/1.2
Lens Mount
Canon RF
Lens Format Coverage
Super35/APS-C (32 mm Image Circle)
Filter Thread
67 mm x 0.75
Image Stabilization
No
Focal Length
35mm
Maximum Aperture
f/1.2
Minimum Aperture
T16
Lens Mount
Canon RF
Lens Format Coverage
Super35/APS-C (32 mm Image Circle)
Focus Scales
Metric, Imperial
Optical Design
11 Elements in 10 Groups
Filter Thread
67 mm x 0.75
Minimum Focus Distance
15.7" / 40 cm
Aperture/Iris Blades
12
Image Stabilization
No
Gear Standard
0.8 MOD
Gear Rotation
Focus: 270°
Diameter
Front: 3.1" / 79 mm
Length
3.3" / 83.7 mm
Weight
1.1 lb / 518 g
Packaging Info
Package Weight
2.195 lb
Box Dimensions (LxWxH)
6.3 x 5.3 x 5.1"
Sirui Nightwalker 35mm T1.2 S35 Cine Reviews
Exactly what I wanted!
By Samuel
Rated 5 out of 5
Date: 2025-07-14
This lens was exactly what I wanted. I need manual focus for shooting video, so I don't care to have electrical components in my lens. All I need is the glass and good ergonomics, which this lens boasts. Plus, the very wide aperture means I can take fun, stylish videos at night and indoors. I am really enjoying it. Bonus, it's built very sturdy with metal parts.
Love These Lenses
By Samuel
Rated 5 out of 5
Date: 2025-04-22
I already have the 16 and the 55mm versions of this lens I love the way it renders, built like a tank, and the focus and T stop throws are silky smooth. Can't beat it for the price.
See any errors on this page?
how bad is the vignetting when used on a full ...
how bad is the vignetting when used on a full frame sensor (eg sony a7) specifically with the 35mm focal length?
Asked by: k
The Sirui Night Walker 35mm T1.2 S35 Cine Lens is not meant to be use on a full frame system and doing such will be like filming through a toilet paper roll, the Vignetting will be awful.
Answered by: Jonathan S
Date published: 2024-01-10
Can this E mount lens be adapted to EF?
Can this E mount lens be adapted to EF?
Asked by: Richard
No, there is currently no way to adapt Sony E-mount lenses to the Canon EF mount.
Answered by: Jonathan S
Date published: 2024-01-25
Does this not work with the Panasonic Lumix ...
Does this not work with the Panasonic Lumix S5iiX?
Asked by: Diego
The Sirui Night Walker 35mm T1.2 S35 Cine Lens (Leica L, Black) can be used with the Panasonic Lumix S5 IIX Mirrorless Camera when the camera is in APS-C mode as the lens does not cover a full frame sensor. Just note that certain photo aspect ratios and resolutions as well as certain video resolutions will not be available when in APS-C mode.
