
Sirui 16AS12E-B-AM 16mm F1.2 APS-C E-Mount Lens
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.
*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.
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Overview
Key Features
As budget-friendly f/1.2 autofocus APS-C lenses, the addition of the 16mm wide-angle and 75mm telephoto lenses complements existing 23mm, 33mm, and 56mm sniper series lenses, allowing filmmakers to unleash their creativity with a full set ready.
16mm Wide-Angle: The 16mm focal length offers a dynamic wide-angle perspective, allowing for more of the scene to be included in the frame, making it ideal for capturing expansive landscapes, immersive architectural shots, and impactful street photography.
Swift & Silent Auto-Focus: Equipped with STM (stepping) focus motors, the auto-focus system supports eye AF and object tracking, ensuring photographers capture sharp, clear images swiftly without disturbing the scene.
Outstanding Optical Performance: ED glass and high refractive index glass are added to deliver unmatched sharpness and clarity across the entire frame while reducing ghosting and lens flare. Two aspherical lenses are added to 16mm lens to reduce lens size. Also, distortion and optical aberration are well controlled.
Premium lens Body - The strong carbon fiber body makes it sturdy and portable in hand. It helps to protect inner optical elements while the minimum weight of each single lens is around only 380g, creating a new era of lightweight fast aperture lens.
F1.2 Large Aperture - Featuring large F1.2 aperture, this sniper lens ensures a large amount of light throughput even when shooting in dark, extremely shallow DOF, and amazing bokeh function to highlight the main topic.
Specifications
Pros & Cons
👍 Pros
- F1.2 maximum aperture allows exceptional low-light performance and extremely shallow depth of field
- Carbon fiber body keeps the weight around 380g, making it unusually light for a fast wide-angle lens
- STM autofocus motor operates quietly and supports eye AF and subject tracking
- 14 elements in 5 groups with ED glass and aspherical elements deliver strong sharpness with controlled aberrations
👎 Cons
- APS-C only coverage limits usability if you upgrade to a full-frame body in the future
- No optical image stabilization, which can matter at wider apertures in low light when handheld
- At 0.3m minimum focus distance, it is not ideal for close-up or macro-style wide-angle work
- As a third-party lens, autofocus compatibility with future camera firmware updates is not guaranteed