Irix Cine 21mm T1.5 Canon RF Imperial Cinema Lens

On a high-end film set, the cinematographer needs a wide-angle lens that delivers crisp, distortion-free images even when shooting wide open at T1.5. The Irix Cine 21mm T1.5 for Canon RF is built for exactly that scenario—a full-frame cine prime that combines a 90.9° field of view with exceptional optical performance, making it a go-to for establishing shots, interiors, and tight spaces where every detail matters.

Key specifications

• Focal length: 21mm
• Maximum aperture: T1.5
• Minimum aperture: T22
• Lens mount: Canon RF
• Format compatibility: Full-frame
• Angle of view: 90.9° (full-frame)
• Optical design: 15 elements in 11 groups
• Aperture blades: 11 (rounded)
• Minimum focus distance: 0.3 m / 1 ft
• Focus scale: Imperial (feet)
• Front filter thread: 86mm
• Front diameter (matte box): 95mm
• Gear modulus (focus/iris): 0.8 MOD
• Focus ring rotation: 180°
• Iris ring rotation: 75°
• Weather sealing: Yes (4 rubber seals)
• Image stabilization: No
• Autofocus: No (manual focus only)

Why choose it

The Irix Cine 21mm T1.5 stands out for its robust cine-style build and precise manual controls. The 180° focus rotation and 75° iris rotation allow for smooth, repeatable pulls, while the 0.8 MOD gear rings integrate seamlessly with follow-focus systems. The rounded 11-blade aperture produces pleasing bokeh, and the weather-sealed construction ensures reliability in challenging conditions. With a 95mm front diameter, it fits standard matte boxes and cine accessories without step-up rings.

Ideal use cases

• Narrative filmmaking: wide establishing shots and immersive interiors.
• Documentary work: capturing tight spaces and environmental context.
• Commercial and music video production: dynamic wide-angle perspectives with shallow depth of field.
• Independent and studio productions: reliable manual cine lens for Canon RF cameras.

Good to know

The lens features an imperial focus scale marked in feet, ideal for productions using imperial measurements. Its 86mm filter thread allows direct attachment of standard filters, while the 95mm front diameter is compatible with common matte boxes. The lens is fully manual, with no electronic communication, ensuring consistent performance across different camera bodies.