Sirui 40mm T1.8 anamorphic lens

Sirui 40mm T/1.8: Compact Anamorphic Lens with Autofocus

Sirui has redefined compact anamorphic lenses with its groundbreaking Sirui 40mm T/1.8 1.33X S35 AF. This innovative lens offers not only anamorphic capabilities but also autofocus, a rarity in its class. Its versatile features make it a go-to option for photographers and videographers who want cinematic visuals with customizable flare and bokeh effects.

The Sirui 40mm T/1.8 comes in four mounts: Sony E, Fujifilm X, Nikon Z, and Micro Four Thirds. Weighing just 614g (1.35 lbs), it incorporates a stepping motor for autofocus, supporting features like eye AF and subject detection when paired with compatible camera bodies. The lens allows a minimum focusing distance of 0.6m (2 feet), ensuring versatility in close-up and wide-shot compositions.

Sirui 40mm T1.8
Image credit- Sirui

Unparalleled Anamorphic Performance


With a 1.33x anamorphic squeeze factor, the lens delivers a widescreen aspect ratio of 2.35:1 in 16:9 mode, creating cinematic visuals without cropping. Its bokeh varies by aperture, offering hexagonal shapes at T/1.8 and oval shapes at T/2.4, giving users the flexibility to achieve their preferred look.

Horizontal flare, a signature feature of anamorphic lenses, is enhanced in this model. Sirui offers two versions: one with a traditional blue flare and another with a neutral flare that adopts the colors of the light source. This option enables filmmakers to match the lens’s output with their creative vision.

Precision Engineering and Design

The Sirui 40mm T/1.8 features a robust optical structure of 16 elements in 12 groups. Key design elements include a stepless aperture click switch, an autofocus/manual focus toggle, and customizable buttons for Z-Mount and E-Mount users. Built-in electronic contacts save EXIF data to image files, while a USB-C port ensures the lens remains up-to-date with firmware upgrades.

Crowdfunding Success

Launching on Indiegogo, the lens has already garnered over $200,000 (€215,977) in funding. Backers who act quickly can secure it for $639 (€604) a 20% discount off the anticipated retail price. The bundle option, which includes a tripod, adds even more value.

Shipping begins on December 9, with the Micro Four Thirds variation available from January 2, 2025. To reassure buyers, Sirui guarantees refunds for lenses not shipped by January 21, 2025.

Sirui 40mm T1.8 delivery release

Experience Cinematic Excellence


The Sirui 40mm T/1.8 combines compact design, advanced autofocus, and anamorphic artistry to redefine visual storytelling. Whether you’re a seasoned professional or a budding filmmaker, this lens empowers you to craft breathtaking visuals with ease. Explore its features and secure your piece of cinematic magic on Indiegogo today.

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