Sirui Swift Full-Frame Primes Priced at Just $149 Each

By Amara Osei

Sirui's first Swift-series full-frame autofocus (AF) primes (fixed-focal-length lenses), the 20mm f/2.4 and 40mm f/2.2, cost $149 each ahead of a November 6 release.

At the time of the announcement, photographers could preorder either lens directly through Sirui. The company expected other retailers to carry them leading up to, or on, November 6, although broader retail distribution had not begun. That makes November 6 a scheduled availability point, not evidence of a wide rollout already underway.

What does $149 change for working photographers?

Sirui said: “For many photographers, choosing an everyday lens means balancing image quality, portability, and budget. Larger lenses can add considerable weight to a camera bag, while more affordable options may require compromises in aperture or optical design.” The statement frames price as a design constraint, not simply a promotional headline.

The company adds: “The Swift series is designed with these practical needs in mind, offering two compact autofocus lenses that balance everyday versatility with an accessible price point.” Sirui therefore targets photographers and content creators who want compact equipment while addressing its stated concerns about weight, aperture and optical design.

At $149 per lens, a two-lens purchase costs $298 before tax, exactly twice the outlay for either prime. Sirui calls the focal lengths complementary, so buyers should match them to assignments rather than treat the pair as duplicate coverage.

Which camera bodies fit the Swift lenses?

Sirui lists full-frame Sony E-mount and L-Mount cameras, plus APS-C (crop-sensor) Fujifilm X Series bodies. The range therefore covers full-frame and crop-sensor shooters across three named camera systems, while the announcement identifies no additional mounts.

Working photographers should verify each body-and-lens pairing before procurement, especially when one kit must serve crews working across different systems. Mount availability matters operationally because Sirui has not promised a specific supply quantity or simultaneous retailer rollout.

What do the optical specifications reveal?

Sirui's dimensions and weight figures support its portability claim. Each lens measures 60 to 62.3 millimeters (2.36 to 2.45 inches) long. Depending on lens and mount, weight ranges from 207 to 215 grams (7.3 to 7.6 ounces), centering on roughly 210 grams (7.4 ounces).

The eight-gram spread means the model choice does not materially change the stated carrying load. Both lenses also accept 58mm front filters, avoiding a change in front-filter logistics between the two primes.

• 20mm f/2.4: 11 optical elements in nine groups, including two ED (extra-low-dispersion) elements, two aspherical elements and two HRI (high-refractive-index) elements.
• 40mm f/2.2: 11 elements in eight groups, including two ED elements and one aspherical element, with no HRI elements.
• Shared construction: Both use all-glass optical designs and nine-blade aperture diaphragms (blade-controlled openings).

The control layout remains consistent across both lenses. Each combines AF with manual focus, and each focus ring rotates through 360 degrees. An aperture control ring includes an automatic “A” position.

Maximum magnification is 1:7.3 for both, a reproduction ratio that places them in the general-purpose category rather than among close-focusing macro lenses. For working photographers, matching focus and aperture controls can reduce handling differences between the two primes.

What is proven, and what still needs testing?

Sirui establishes price, mount compatibility, physical dimensions and optical construction in the announcement. It does not publish independent tests of focus accuracy, sharpness, flare behavior or low-light performance, so the $149 tag remains an unverified value proposition.

That distinction matters to photographers and content creators whose revenue depends on usable files rather than a specification sheet. Claimed balance and versatility require shooting tests before either lens replaces a dependable daily lens.

Availability adds a second test. A November 6 release helps a buyer only when direct orders and retailer stock arrive when needed, and the $149 price does not remove the risk of waiting for a broader supply base.

The first business checkpoint arrives on November 6: Sirui must deliver enough availability at $149 to support the rollout. Independent shooting tests must then establish whether these compact primes earn daily-kit space.