The black X-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
T1.2
Lens Mount
Sony E
Lens Format Coverage
Super35/APS-C
Filter Thread
67 mm x 0.75
Image Stabilization
No
Maximum Aperture
T1.2
Minimum Aperture
T16
Lens Mount
Sony E
Interchangeable Mount
No
Lens Format Coverage
Super35/APS-C
Image Circle
32.0 mm
Angle of View
Not Specified by Manufacturer
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
MOD
Gear Rotation
Focus: 270°
Diameter
Front: 3.1" / 79 mm
Length
3.4" / 85.4 mm
Weight
1.1 lb / 513 g
Packaging Info
Package Weight
2.185 lb
Box Dimensions (LxWxH)
7.7 x 5.3 x 5"
Sirui Nightwalker 35mm T1.2 S35 Cine Reviews
Excellent Budget Cinema Lenses for MFT
By Hugh
Rated 5 out of 5
Date: 2025-06-07
I purchased the entire five lens set for MFT and I could not be happier. They are well built, consistent in handling quality and are a dream to use. Even wide open the images are sharp. Many people have tested these lenses wide open on focus charts and have indicated soft corners. Well, I don't video focus charts. I video movement and action and the images look terrific when used across the entire range of codecs and resolutions with my Panasonic Lumix GH6, Gh7, and G9 II cameras. The colors look great and these lenses give a very filmic quality. I admit, 100%, I like this lens set better than the Rokinon DS, DSX line and Mitakon Zhongyi lenses.
Better than expected
By Paul
Rated 5 out of 5
Date: 2024-08-08
Lens is by far a great value for the money. Focusing dial is smooth, aperture is the same just absolute smooth. Photos are crisp and that aperture really collects light. I will be buying more of this brand of lens. B&H Photo has a great product here if you ask me.
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.
