Irix Cine Lens 45mm T1.5 Micro Four Thirds Metric

When shooting narrative film or commercial work, achieving a cinematic look with precise focus control and consistent exposure is critical. The Irix Cine Lens 45mm T1.5 for Micro Four Thirds mount delivers exactly that—a fast, manual-focus prime lens built for professional video production. With a bright T1.5 aperture, it excels in low light and provides beautiful shallow depth of field, while the metric focus scale and 180° focus rotation allow for smooth, repeatable focus pulls. Its full-frame image circle ensures edge-to-edge sharpness even on MFT sensors, and the robust weather-sealed construction means you can rely on it in challenging environments.

Who is it for

This lens is ideal for cinematographers, videographers, and independent filmmakers using Micro Four Thirds cameras who demand high optical quality and precise manual control. It suits documentary, corporate, music video, and narrative work where consistent color and sharpness across a lens set are essential. The metric focus scale is particularly useful for focus pullers working in metric regions or on productions requiring exact distance markings.

Main features

• Fast T1.5 maximum aperture for excellent low-light performance and shallow depth of field
• Micro Four Thirds mount with full-frame image circle coverage (43.3mm diagonal)
• Manual focus with 180° rotation and metric scale for precise, repeatable focus pulls
• 9 rounded aperture blades for smooth, organic bokeh
• Weather-sealed with 3 rubber seals to protect against dust and moisture
• 86mm filter thread and 95mm front diameter for compatibility with standard matte boxes and filters
• 0.8 MOD cine gear on focus and aperture rings for follow focus systems
• Minimum focus distance of 0.4m for close-up shots
• Optical construction of 11 elements in 9 groups for high resolution and contrast
• Low distortion (<1%) and 50.3° angle of view on full-frame

Specifications

• Focal length: 45mm
• Maximum aperture: T1.5
• Minimum aperture: T22
• Lens mount: Micro Four Thirds (MFT)
• Image circle: Full-frame (43.3mm diagonal)
• Focus type: Manual
• Aperture blades: 9 (rounded)
• Filter thread: 86mm
• Front diameter: 95mm
• Gear standard: Cine 0.8 MOD
• Focus rotation: 180°
• Aperture rotation: 75°
• Minimum focus distance: 0.4 m (1.31 ft)
• Optical construction: 11 elements in 9 groups
• Weather sealing: Yes (3 rubber seals)
• Focus scale: Metric
• Angle of view (full-frame): 50.3°
• Distortion: < 1%

Tips

Pair this lens with other Irix cine lenses for a matched set, ensuring consistent color and sharpness across your production. Use a follow focus system with the 0.8 MOD gear for smooth focus transitions. When shooting in adverse weather, the weather sealing allows you to continue working without worry. For best results, use a matte box with 86mm filters to control light and protect the front element.