Irix Cine 45mm T1.5 PL-mount Imperial Lens

Cinematographers often struggle to find a lens that balances fast aperture, robust build, and precise manual control without breaking the bank. The Irix Cine 45mm T1.5 PL-mount Imperial lens solves this by delivering a true cine-style design with a bright T1.5 aperture, full-frame coverage, and a durable, weather-sealed construction—all in a compact, affordable package.

Who is it for

This lens is built for professional filmmakers, videographers, and rental houses who demand consistent optical performance and reliable mechanics. It suits narrative productions, documentaries, music videos, and commercial work where a 45mm focal length offers a natural perspective with minimal distortion. The Imperial focus scale (feet/inches) is ideal for crews working in regions that use imperial measurements.

Main features

• Fast T1.5 maximum aperture for excellent low-light performance and shallow depth of field control
• Full-frame (43.3mm image circle) coverage, compatible with VistaVision and large-format cinema cameras
• PL-mount with positive lock for secure attachment to professional cinema cameras
• 11 elements in 9 groups optical design for sharp, high-contrast images with controlled flare
• 9-blade rounded aperture for smooth, organic bokeh
• Industry-standard 0.8 MOD focus and iris gears for seamless integration with follow focus systems
• 180° focus rotation and 75° iris rotation for precise, repeatable adjustments
• Weather-sealed with 3 rubber gaskets to protect against dust and moisture
• 86mm front filter thread and 95mm front diameter for matte boxes and accessories

Specifications

• Focal Length: 45mm
• Maximum Aperture: T1.5
• Minimum Aperture: T22
• Lens Mount: PL-mount
• Image Circle: 43.3mm (Full Frame / VistaVision)
• Minimum Focusing Distance: 0.4 m (1.31 ft)
• Number of Aperture Blades: 9 (rounded)
• Filter Thread Size: 86mm (front)
• Front Diameter: 95mm
• Gear Modulus: 0.8 MOD (Focus, Iris)
• Focus Ring Rotation: 180°
• Iris Ring Rotation: 75°
• Optical Design: 11 elements in 9 groups
• Focus Scale: Imperial (feet/inches)
• Weather Sealing: Yes (3 seals)
• Angle of View (Full Frame): 51.4° (diagonal)
• Autofocus Support: No (Manual Focus Only)
• Compatibility: Professional Cinema Cameras

Tips

Pair this lens with a follow focus system for smooth, repeatable focus pulls. Use a matte box with 95mm clamp adapter to control flare and protect the front element. For consistent colour across your kit, consider the full Irix Cine line.