Sirui

Sirui 16AS12E-B-AM 16mm F1.2 APS-C E-Mount Lens

f/1.2

SIRUI's 16mm F1.2 autofocus lens delivers fast, wide-angle shooting in a lightweight carbon fiber body for Sony E-mount APS-C cameras.

$319.00*
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*Price sourced from Amazon.com. Last updated:Aug 28, 2026.Price and availability are subject to change — details.

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Overview

The SIRUI Sniper 16mm F1.2 Autofocus Lens is the wide-angle entry in SIRUI's budget-friendly F1.2 APS-C lens lineup for Sony E-mount cameras. At 16mm on an APS-C sensor—equivalent to roughly 24mm full-frame—it hits the sweet spot for landscape photography, architectural work, environmental portraits, and street shooting where you want to include more of the scene. The F1.2 maximum aperture is the standout specification, pulling in substantially more light than typical kit lenses and producing a creamy, pronounced bokeh that is unusual at this focal length and price range. A 13-blade aperture diaphragm contributes to smooth, rounded out-of-focus highlights.

Optically, the lens uses 14 elements in 5 groups, incorporating ED glass and high refractive index elements to minimize chromatic aberration and ghosting, while two aspherical elements help control distortion and keep the overall barrel length compact. The STM stepping motor delivers autofocus that is both fast and quiet, with support for eye detection and object tracking autofocus modes. Build quality centers on a carbon fiber body that brings the weight down to approximately 380g—light enough for extended handheld shooting or gimbal use without heavy counterweighting. Combined with the existing 23mm, 33mm, 56mm, and 75mm Sniper lenses, this 16mm completes a versatile, affordable prime lens set for APS-C filmmakers and photographers.

Key Features

Capture More of the Scene: The 16mm focal length delivers an approximately 24mm full-frame equivalent view, making it easy to fit more into the frame. Ideal for landscapes, architecture, interiors, travel and city scenes when you want to show more of the environment without stepping too far back.

Made for Vlogging & Dynamic Video: The wide perspective helps keep you and your surroundings in frame when shooting handheld vlogs, travel videos and walk-and-talk content. The F1.2 aperture also creates subject separation and a cinematic look when you want more than a typical wide-angle lens.

F1.2 for Low-Light Creativity: The bright F1.2 aperture lets in more light for night streets, indoor scenes, evening events and dim environments, while the shallow depth of field helps separate your subject from the background for a more expressive look.

Fast AF for Moving Subjects: The STM autofocus motor provides quick and quiet focusing with support for Eye AF and subject tracking, helping keep people in focus during vlogging, street photography, events and everyday video without distracting focus noise.

E Mount APS-C Compatibility: Compatible with Sony APS-C E Mount cameras including a6100, a6400, a6500, a6600, a6700, FX30 and ZV-E10. Ideal for vlogging, travel, landscapes, interiors and video creation. APS-C lens coverage; please confirm your camera model and mount before purchase.

Specifications

Brand
SIRUI
Model
16AS12E-B-AM
Focal Length
16mm
Maximum Aperture
F1.2
Minimum Aperture
F16
Lens Mount
Sony E-Mount
Format
APS-C
Focus Type
Autofocus (STM Motor)
Lens Construction
14 Elements in 5 Groups
Aperture Blades
13
Minimum Focus Distance
0.3m
Filter Thread
M58×0.75
Body Material
Carbon Fiber
Weight
~380g

Frequently Asked Questions

It is designed for APS-C sensor cameras. While it can physically mount on a full-frame Sony E-mount body, the image circle is optimized for APS-C and will produce heavy vignetting unless the camera is set to APS-C crop mode.
On a Sony APS-C body with its 1.5x crop factor, the 16mm focal length provides a field of view equivalent to approximately 24mm on a full-frame camera.
The STM stepping motor is designed to be smooth and quiet during focusing, making it well-suited for video recording where audible focus noise would be a problem. It also supports eye AF and object tracking.
No, the lens does not include optical image stabilization. You would need to rely on your camera's in-body stabilization or use external stabilization for handheld shooting.
It accepts 58mm threaded filters (M58×0.75).