Sirui Anamorphic 40mm T1.8 Lens – Cinematic Standard for Sony E-Mount
The Sirui Anamorphic 40mm T1.8 is a fixed-focal-length lens designed for Sony E-mount full-frame cameras. It combines a fast maximum aperture of F/1.8 with a classic anamorphic character, making it suited for cinematic video production and high-end photography.
F/1.8 maximum aperture enables shallow depth of field and strong subject separation in low-light conditions
77 mm filter thread accepts standard anamorphic and polarising filters for creative control
Full-frame image sensor coverage ensures compatibility with the entire Sony E-mount professional lineup
24-month manufacturer warranty provides long-term reliability for professional workflows
What sets the Sirui Anamorphic 40mm T1.8 apart
Unlike standard spherical lenses, this anamorphic design introduces the characteristic horizontal flare and oval bokeh associated with cinematic optics, while maintaining a compact and mechanically robust build. The fixed 40 mm focal length encourages a deliberate shooting style and consistent visual language across a project.
Ideal for...
Cinematographers and videographers working on narrative projects, music videos, and commercial productions that require a distinct anamorphic look. The lens also serves photographers who want a fast, lightweight prime for events and location work where a specific focal length and cinematic rendering are desired.
Application of the Sirui Anamorphic 40mm T1.8
Mount the lens on a Sony E-mount full-frame camera body and secure the 77 mm filter if needed
Set the aperture between F/1.8 and F/16 depending on the desired depth of field and lighting conditions
Use the fixed 40 mm focal length for controlled compositions; pair with a follow focus for smooth focus pulls
Store the lens in a protective case when not in use to preserve the anamorphic coating and filter thread
Sirui is a Swiss optical manufacturer specialising in anamorphic lenses and cinema-grade accessories for mirrorless camera systems. The brand focuses on delivering distinctive visual characteristics — such as anamorphic flares and oval bokeh — at accessible price points for independent filmmakers and professional videographers.
It is a fixed-focal-length anamorphic lens for Sony E-mount cameras, used in cinematic video production and photography that requires a distinctive wide-angle anamorphic look with shallow depth of field.
The lens is compatible with all Sony E-mount cameras that support full-frame sensors, including the Sony A7 series, A9 series, and FX series bodies.
Focal length: 40 mm, maximum aperture: F/1.8, minimum aperture: F/16, filter diameter: 77 mm, image sensor coverage: full-frame, lens type: standard anamorphic fixed focal length.
The lens comes with a 24-month manufacturer warranty. Delivery includes the Sirui Anamorphic 40mm T1.8 lens unit; filters and camera bodies are not included.
Store the lens in a protective case when not in use, clean the front and rear elements with a microfibre cloth, and use a 77 mm UV or protective filter to shield the front element from scratches and dust.
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