The Sigma 40mm T1.5 FF High-Speed Prime Lens (Sony E, Feet) fuses the exceptional optical and mechanical quality of the Global Vision still lineup with a design that caters to cinematographers. This 40mm prime lens, tailored for Sony E-mount cameras, serves as a versatile mid-range focal length within the series, delivering comprehensive full-frame sensor coverage and the ability to resolve 6-8K images. The lens includes feet-based focus markings and boasts a fast T1.5 aperture—all within a compact and lightweight build. In addition to Sony E-mount, this lens is also offered in Canon EF and PL mounts. Featuring a uniform 95mm front diameter and a shared physical profile across the series, mounting accessories like matte boxes, follow focuses, and lens control motors is both swift and straightforward.
Optical and Mechanical Excellence
Equipped with a 9-bladed iris, this lens produces beautifully smooth out-of-focus bokeh, with ghosting and flaring significantly minimized for cleaner images. Colour reproduction is standardized throughout the range to simplify colour correction when mixing lenses. Users can expect consistent gear positions for each lens, along with a generous 180° of focus barrel rotation, ensuring precise manual focus control.
Professional Cine Features
The FF High-Speed Primes offer a clickless iris with accurate linear markings for smooth aperture adjustments. Silent operation is achieved with dampeners on each gear ring, while industry-standard 0.8 module gear pitch accommodates professional follow focus systems. Engraved markings provide lasting durability, and selected indicators use luminous paint for improved legibility in low-light filming conditions.
Robust and Adaptable Build
Constructed from a dust- and water-resistant metal body, each lens integrates a support foot to minimize stress on your camera’s lens mount. Flexibility is enhanced by the option to have Canon EF and Sony E-mount versions converted at authorized Sigma service centers to suit different camera systems (conversion is not available for PL mounts). With its thoughtful design and robust build, Sigma’s 40mm T1.5 FF is a compelling choice for both demanding shoots and versatile production environments.
