SIRUI Unveils the Swift Series: Compact, All-Glass Full-Frame Autofocus Lenses

by
0 Comments
SIRUI Unveils the Swift Series: Compact, All-Glass Full-Frame Autofocus Lenses

SIRUI has announced the launch of its new Swift series, a lineup of ultra-compact, full frame autofocus lenses tailored for photographers and content creators seeking lightweight glass without sacrificing optical integrity. This launch offers two lenses: a 20mm f/2.4 and a 40mm f/2.2.

All-Glass Optics in an Ultra-Lightweight Build

With both lenses weighing in at roughly 210 g each, SIRUI did not choose to lean toward using plastic optical elements. In fact, they achieve the lightweight setup by intentionally avoiding overly complex designs and using all-glass optical construction as the core foundation of the Swift lineup to keep them remarkably small.

Despite their compact form factor, both options feature integrated manual aperture rings, nine-blade circular apertures for smooth out-of-focus transitions, and STM autofocus motors designed to handle quiet, responsive tracking for both stills and video workflows. To keep filter management simple across a dual-lens kit, both models share a standard 58mm front filter thread.

Technical Specifications and Optical Formulas

  • SIRUI Swift 20mm f/2.4: Delivers an ultra-wide 91.5° diagonal field of view.

    • Optical construction: 11 elements in 9 groups
    • Minimum focusing distance: 0.2 m
    • Maximum magnification: 0.136×
    • Weight: 207 g (Sony E), 212 g (L-mount)
    Sirui 20mm F2.4 black camera lens standing upright on a plain white background, showing its aperture ring and gold focal length markings.
    Front view of a black 20mm F2.4 AF full-frame camera lens centered on a white background.
    Sirui black prime camera lens with ribbed focus ring, MF/AF switch, and exposed silver mount, shown upright on a white background.
    Black 20mm F2.4 camera lens with a petal-shaped lens hood, shown upright against a plain white background.

  • SIRUI Swift 40mm f/2.2: Provides a natural, everyday perspective.

    • Optical construction: 11 elements in 8 groups
    • Minimum focusing distance: 0.4 m
    • Maximum magnification: 0.14×
    • Weight: 210 g (Sony E), 215 g (L-mount)
    Black Sirui 40mm f/2.2 camera lens on a white background, shown from the side with its focus and aperture rings.
    Black 40mm F2.2 prime camera lens standing upright on a plain white background, showing its aperture ring and FN button.
    Front view of a black 40mm F2.2 AF full frame camera lens on a plain white background, showing the glass element and barrel markings.
    Black 40mm f/2.2 camera lens with a wide petal-shaped hood, shown against a plain white background.

Broad Multi-System Support and Accessible Pricing

SIRUI is launching both Swift lenses in Sony E and L-mount versions, with Fujifilm X-mount versions also listed on its official store. Additional mount options are planned, although Nikon Z availability has not been confirmed.

Both the Swift 20mm f/2.4 and Swift 40mm f/2.2 are priced at $149 each, making the series an exceptionally accessible entry point for creators building out a lightweight primary kit or a streamlined secondary setup.

News
Gear

Yang Zhen Siang is a Hospitality and Industrial photographer. Specialized in crafting immersive visual narratives in transforming spaces, architecture, and industries into compelling stories that connect, inspire, and elevate brand experiences.

Related Articles