Dulens APO Mini Prime 31mm T2.4 Lens (ARRI PL, Black)

The Dulens APO Mini Prime 31mm T2.4 Lens (ARRI PL, Black) is a lightweight, compact cine-style lens built to create an expressive, softer look for cine-style capture, covering up to full-frame sensors through a 46mm image circle. It’s part of Dulens’s APO Mini Prime series, designed to give filmmakers a vintage, gentler aesthetic with a special coating that smooths out skin tones and out-of-focus areas.

Optically, the lens offers a 31mm focal length with a maximum aperture of T2.4 narrowing to a minimum of T22, delivering ultra-high resolution capable of meeting the demands of large-format 8K capture while producing a cinematic feel with shallow depth of field and smooth, gentle bokeh. An 11-blade iris diaphragm contributes to the lens’s pleasing, controlled out-of-focus rendering, and the lens is noted for sharp but not rigidly sharp focus, producing a gentler, more vintage-style look overall.

Handling is built around cine-style ergonomics, with a standard 0.8 MOD focus and iris gear for use with follow-focus systems, along with focus marks calibrated in both feet and meters. As a fully manual lens, there is no autofocus or electronic communication with the camera body; both focus and aperture are adjusted entirely by hand, with Dulens noting a comfortable two-finger sliding focus action.

Build quality centers on a compact, lightweight metal housing, measuring approximately 80mm in front diameter and 68mm in length, and weighing approximately 1.1-1.2 lb (530-550g), among the lightest cine-style prime lens sets on the market. It has a minimum focusing distance of approximately 15 in. and accepts a 72mm filter thread, consistent with the rest of the APO Mini Prime series, making it easy to swap lenses without reconfiguring a matte box or other accessories. The lens ships with an ARRI PL mount, with a separately available EF-mount adapter letting it be used with a wider array of cine-style and mirrorless cameras.

As part of a matched prime lens series (offered in 21mm, 31mm, 43mm, 58mm, 85mm, and 110mm focal lengths), the Dulens APO Mini Prime 31mm T2.4 shares a consistent front outer diameter, filter thread, iris blade count, and gearing with its companion lenses, simplifying lens changes on set.

Key Features
– 31mm T2.4 full-frame cine prime lens with ARRI PL mount
– 46mm image circle (covers full-frame sensors)
– Special coating for a smooth, vintage-style look
– 11-blade iris diaphragm
– Fully manual focus and aperture (no electronic communication)
– 0.8 MOD focus and iris gears
– Focus marks in feet and meters
– Interchangeable PL/EF mount (EF adapter sold separately)
– 72mm filter thread; 80mm front diameter
– Minimum focusing distance of approximately 15 in.
– Compact, lightweight metal construction (approximately 530-550g)
– Part of a matched multi-focal-length prime lens series
– Compatible with full-frame ARRI PL-mount cinema cameras