Irix Cine Lens 45mm T1.5 Canon EF Metric

With a blistering T1.5 maximum aperture, the Irix Cine Lens 45mm T1.5 for Canon EF delivers razor-sharp 51.4° full-frame coverage, giving cinematographers exceptional low-light performance and creamy bokeh. Its 11-element optical design in 9 groups, featuring 9 rounded diaphragm blades, ensures cinematic rendering with minimal aberrations and beautiful out-of-focus highlights.

Overview

Engineered for professional filmmakers, this 45mm prime lens combines robust aluminum-magnesium alloy construction with weather sealing at 5 critical points, making it reliable in demanding environments. The lens features a manual focus ring with 180° rotation and a de-clicked aperture ring with 75° rotation, both equipped with industry-standard 0.8 mod gears for seamless integration with follow focus systems. The metric focus scale provides precise distance markings for accurate pulling.

What stands out

• Ultra-fast T1.5 aperture for shallow depth of field and low-light shooting
• Full-frame coverage with a 51.4° diagonal angle of view
• De-clicked aperture ring for smooth, silent iris adjustments
• Weather-sealed construction with 5 sealing points for outdoor use
• Standard 0.8 mod gears on focus and iris rings for cine accessories
• 86mm front filter thread and 95mm front diameter for matte box compatibility

Technical details

• Focal Length: 45mm
• Maximum Aperture: T1.5
• Minimum Aperture: T22
• Lens Mount: Canon EF
• Image Circle: Full-Frame
• Focus Type: Manual Focus
• Minimum Focus Distance: 0.4 m (1.31 ft)
• Optical Design: 11 Elements in 9 Groups
• Diaphragm Blades: 9, Rounded
• Front Filter Thread: 86mm
• Front Diameter (Matte Box): 95mm
• Weather Sealing: Yes (5 sealing points)
• Angle of View (Full-Frame): 51.4° (Diagonal)
• Construction Material: Aluminum-Magnesium Alloy
• Focus Ring Rotation: 180°
• Iris Ring Rotation: 75°

Our verdict

A superb cine prime for full-frame Canon EF shooters, combining a fast T1.5 aperture, robust weather-sealed build, and precise manual controls. The de-clicked aperture and 0.8 mod gears make it a seamless fit for professional rigs, while the 45mm focal length offers a natural perspective for narrative work.