The Fujinon MKX 18-55mm T2.9 is a high-performance, lightweight cinema zoom lens designed for professional video production on Fujifilm X-mount cameras with Super 35mm/APS-C sensors.
Key Features and Specifications
Lens Type: Cine zoom lens (not a standard photography lens like the XF 18-55mm f/2.8-4).
Mount: Available for Fujifilm X-mount (MKX series) and Sony E-mount (MK series).
Focal Length: 18-55mm, covering a versatile wide-to-standard range (27-84mm full-frame equivalent).
Constant Aperture: A constant T2.9 (transmittance value) across the entire zoom range, which is ideal for maintaining consistent exposure and achieving a shallow depth of field in low light.
Optical Design: Features a sophisticated design with 22 elements in 17 groups, including six Super ED and two ED elements, to reduce distortion, chromatic aberration, and other common cinema lens flaws. It is color-matched with other high-end Fujinon cine lenses.
Cine-Specific Mechanics:
Manual Control: Three independent, fully manual control rings for focus, zoom, and iris (aperture).
Standard Gears: All control rings have industry-standard 0.8M gear pitches for compatibility with third-party follow focus systems and other cinema accessories.
Smooth Operation: Clickless iris for smooth exposure transitions and a 200° focus rotation angle for precise focus pulling.
Parfocal Design: The lens is parfocal, meaning it maintains focus while zooming in or out, a crucial feature for professional video. It also suppresses "lens breathing" (change in angle of view during focusing) and optical axis shift.
Compact & Lightweight: Designed to be relatively compact and lightweight for a cinema lens, weighing approximately 1100g (2.16 pounds), making it suitable for handheld shooting or gimbal use.
Macro Function: Includes a macro mode for close-up shots.