SIRUI Night Walker 24mm T1.2 Cine Lens - Fast Low-Light Performance

In this review of the SIRUI Night Walker 24mm T1.2 cine lens the bottom line is clear: this is a purpose-built, lightweight S35 prime for filmmakers who need a fast aperture and pleasing bokeh in low light. The lens stands out for its large T1.2 aperture that allows shooting night scenes without excessively high ISO, and for an optical design that keeps images sharp even wide open. It is best suited to APS-C/S35 mirrorless users who want a portable, film-style 24mm field of view with cinematic rendering.

Key Features

• T1.2 Large Aperture: Enables clean low-light shooting with lower ISO and produces a shallow depth of field for subject separation and aesthetic bokeh.
• S35 Coverage: The 24mm on S35 reads like a 34mm full frame equivalent, a useful focal length for landscapes, street work and environmental scenes.
• Outstanding Optical Performance: Designed to deliver strong sharpness and controlled aberration even at the maximum aperture for usable wide-open images.
• Premium Cine Body: An aluminum housing balances durability with portability, keeping the single lens weight around 500g for run-and-gun use.
• 12-Blade Aperture and Smooth Focus: A 12-blade aperture helps render rounded highlights while the 270 degree focus throw supports precise manual focusing.

Who It's For

This lens is aimed at indie filmmakers, street and documentary shooters, and mirrorless owners (E-mount / APS-C) who need a fast, cinematic prime for low-light and creative shallow depth of field. The combination of T1.2 brightness and a compact cine-style body makes it attractive for handheld, gimbal and small-rig setups.

Those who should look elsewhere include photographers who require autofocus or full-frame coverage, and users who prioritize absolute corner-to-corner perfection above the character a fast cine prime provides. Also, if focus accuracy is critical without a follow focus or external aids, test for your workflow since feedback on focus precision is mixed.

Pros & Cons

Pros

• Very strong low-light capability thanks to the fast T1.2 aperture.
• Excellent build quality in a durable aluminum cine-style housing while remaining lightweight.
• Attractive image quality and pleasing shallow depth of field for cinematic footage.
• Good focal length for versatile use on APS-C/S35 cameras like the FX30 and ZV-E10.

Cons

• Manual focus only, and some users report mixed focus accuracy depending on rig and technique.
• S35 coverage means it is not intended for full-frame use without vignetting.

Specifications

Model	SIRUI 24mm T1.2
Focus Length	24mm
Frame	APS-C / S35
Aperture	T1.2 - T16
Lens Structure	12 elements in 11 groups
Aperture Blades	12
Minimum Focus Distance	0.3m

Our Verdict

The SIRUI Night Walker 24mm T1.2 is a strong choice for filmmakers who need a fast, lightweight S35 prime that delivers pleasing bokeh and reliable low-light performance. Its combination of optical quality, durable cine body and a useful 34mm full-frame equivalent focal length makes it good value for creators who shoot handheld, on gimbals or small rigs and who accept manual focus as part of their cinematic toolkit.

Frequently Asked Questions

Is this lens suitable for low-light night shooting?
Yes. The T1.2 aperture is specifically designed to reduce the need for extremely high ISO and to produce cleaner night scenes.

Will this cover a full-frame sensor?
No. The Night Walker series is specified for S35/APS-C coverage, so expect vignetting on full-frame bodies.

Does it have autofocus?
No. This is a manual focus cine lens with a 270 degree focus rotation intended for precise manual focusing and use with follow focus systems.