Sirui Swift: Two Compact Autofocus Lenses for $149

Sirui has introduced the 20mm f/2.4 and 40mm f/2.2 lenses, weighing 207–215 g, for Sony E, L and Fujifilm X cameras. Preorders are now open at $149, with sales expected to begin on November 6.

Sirui Swift: Two Compact Autofocus Primes for $149

Sirui has introduced the Swift series of compact autofocus lenses. It includes two models: the wide-angle Swift 20mm f/2.4 and the Swift 40mm f/2.2. Both lenses are designed for photographers and content creators who value low weight and an affordable price.

The lenses are available for full-frame Sony cameras with an E mount and cameras with an L mount, as well as Fujifilm X APS-C cameras. Sirui describes the 20mm and 40mm focal lengths as complementary. Each model is priced at $149.

According to the company, choosing an everyday lens involves balancing image quality, portability and budget. Large optics add weight to a camera bag, while affordable options may offer a slower maximum aperture or less sophisticated optical designs. The Swift series aims to combine compactness, autofocus and versatility for everyday shooting at an affordable price.

Size and Optical Design

Depending on the model and mount, the lenses weigh 207–215 g, or about 7.3–7.6 oz. Their length ranges from 60 to 62.3 mm, or 2.36 to 2.45 inches. Both lenses accept 58 mm filters.

Each model uses an all-glass optical design. The 20mm f/2.4 has 11 elements in nine groups, while the 40mm f/2.2 has the same number of elements in eight groups. Both lenses include two ED low-dispersion glass elements. The 20mm model also has two aspherical lenses and two HRI high-refractive-index elements. The 40mm model has one aspherical lens and no HRI elements.

Both lenses feature a nine-blade aperture. Alongside autofocus, manual focus is available via a focus ring that rotates through 360 degrees. Both models have the same maximum magnification ratio of 1:7.3, so they are not designed for macro photography. The barrel also features an aperture ring with an Auto position.

Preorders and Availability

The Sirui Swift 20mm f/2.4 and Swift 40mm f/2.2 are now available for preorder directly from the manufacturer for $149 each. At the time of the announcement, no other retailers were offering the lenses. They are expected to appear in stores closer to November 6, or on the official release date, which is set for that day.