IRIX 45mm T1.5 Cine Lens (Sony E, Feet)

The IRIX 45mm T1.5 Cine Lens (Sony E, Feet) is a manual-focus cinema prime lens designed for cine-style image capture on Sony E-mount full-frame cameras, offering a natural field of view well suited to intimate shots and comfortable subject framing. It’s aimed at filmmakers who want full-frame sensor coverage paired with a bright maximum aperture and durable, weather-resistant construction.

Optically, the lens offers a 45mm focal length with a maximum aperture (transmission value) of T1.5, adjustable down to T22, covering a 43.3mm image circle suitable for full-frame, Super 35, APS-C, Micro Four Thirds, and other large-format sensors. The 11-element, 9-group optical design includes four high-refractive-index (HR) elements and three extra-low dispersion (ED) elements, delivering crisp, detailed imagery with very low distortion (under 0.5%) and advanced optical performance capable of supporting resolutions up to UHD 8K. A rounded 9-blade aperture diaphragm produces smooth, cinematic bokeh, and the lens’s internal focusing design keeps focus breathing close to zero while maintaining balance when mounted on gimbals or stabilizers.

Handling is built around cine-style ergonomics, with standard 0.8 MOD geared focus and iris rings for use with industry-standard follow-focus systems, along with luminous, UV-reactive focus markings in feet for visibility in low-light shooting conditions. The lens offers 180 degrees of focus rotation and 75 degrees of iris rotation, giving cinematographers precise, repeatable control over both settings. As a fully manual lens, there is no electronic communication or autofocus capability; focus and aperture are controlled entirely by hand.

Build quality centers on an aluminum and magnesium alloy housing, fully sealed with five weather-resistant seals to protect against rain, snow, and dust, and rated for military-certified performance in humidity and freezing conditions. The lens features a 95mm front diameter for compatibility with matte boxes and accessories, along with an 86mm front filter thread and compatibility with IRIX’s magnetically stacking Edge MMS filters and lens hood. A detachable 1/4″-20 support foot is included for mounting. The lens measures approximately 5.4 x 3.8 in. (138 x 97mm) and weighs approximately 2.6 lb (1,190g), with a minimum focus distance of 15.72 in. (0.4m).

Key Features
– 45mm T1.5 manual-focus cine prime lens for Sony E-mount (full-frame)
– 43.3mm image circle (covers full-frame, Super 35, APS-C, MFT, and other sensors)
– 11 elements in 9 groups, including 4 HR and 3 ED elements
– Aperture range of T1.5 to T22
– Rounded 9-blade aperture diaphragm
– Internal focusing design; focus breathing close to zero
– Standard 0.8 MOD geared focus and iris rings
– 180° focus rotation / 75° iris rotation
– Luminous, UV-reactive distance markings in feet
– Fully manual focus and aperture (no electronic communication)
– Weather-sealed (5 seals), military-certified for humidity and freezing conditions
– Aluminum and magnesium alloy construction
– 95mm front diameter (matte box compatible); 86mm filter thread
– Compatible with IRIX Edge MMS magnetic filters and lens hood
– Detachable 1/4″-20 support foot
– Minimum focus distance of 15.72 in. (0.4m)
– Approximate weight: 2.6 lb (1,190g)