Sirui 20AF133X-ZB 20mm f/1.8 APS-C Standard Lens – Compact Prime for Nikon Z
The Sirui 20AF133X-ZB is a fixed-focal-length standard prime lens designed for Nikon Z-mount APS-C cameras. With a maximum aperture of F/1.8 and a 20mm focal length, it delivers sharp imagery with natural perspective in a compact, lightweight body.
F/1.8 maximum aperture provides excellent low-light performance and shallow depth of field for creative portraits and video work
77 mm filter thread accepts standard polarising and ND filters, expanding creative control without additional adapters
APS-C image sensor coverage optimised for Nikon Z-mount crop-sensor bodies, delivering a versatile 30mm equivalent field of view
24-month manufacturer warranty provides long-term reliability and peace of mind for professional and enthusiast use
Das zeichnet das Sirui 20AF133X-ZB aus
Unlike zoom lenses, this fixed-focal-length prime offers a simplified optical design with fewer moving parts, contributing to its compact 108 g weight and robust build. The T/22 minimum aperture allows for precise exposure control in studio and controlled-environment shooting scenarios.
Ideal for...
Photographers and videographers using Nikon Z-mount APS-C cameras who need a lightweight, high-speed prime for street photography, documentary work, and run-and-gun video production. The 20mm focal length is well suited for environmental portraits and tight interior spaces where a wider field of view is essential.
Anwendung von Sirui 20AF133X-ZB
Mount the lens on a Nikon Z-mount APS-C body and rotate the focus ring to achieve sharp focus on the subject
Use the F/1.8 aperture in low-light conditions or to isolate subjects with a shallow depth of field
Attach 77 mm filters for glare reduction, colour enhancement, or long-exposure motion blur control
Store the lens in a protective case when not in use to preserve the optical coatings and filter thread
Sirui is a Chinese optical manufacturer specialising in compact, high-value lenses and tripods for mirrorless and DSLR systems. The brand focuses on delivering professional-grade optics at accessible price points, with products widely used in travel, street, and documentary photography.
It is a fixed-focal-length standard prime lens designed for Nikon Z-mount APS-C cameras, suitable for street photography, documentary work, environmental portraits, and run-and-gun video production.
The lens is designed for Nikon Z-mount cameras with APS-C image sensors. It is not compatible with full-frame Nikon Z bodies or other mount systems without an adapter.
Focal length: 20 mm, maximum aperture: F/1.8, minimum aperture: T/22, filter diameter: 77 mm, image sensor format: APS-C, weight: 108 g, mount type: Nikon Z.
The lens body with a 77 mm filter thread and a 24-month manufacturer warranty. A lens hood and carrying case may be included depending on the retailer.
Use a soft microfibre cloth to clean the front and rear elements regularly. Store the lens in a dry, dust-free case when not in use, and always attach a lens hood to protect the front element from scratches and flare.
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