"FUJINON MK18-55mm T2.9" achieves high optical performance and low distortion with T2.9 speed across the entire zoom range. Super 35mm/APS-C sensor compatibility and E-mount dedicated design have led to an ultra-compact & "less than 1kg" lightweight body, and excellent cost performance. It suppresses "focus shift and optical axis shift while zooming" and "Lens breathing". Also, it features three fully manual lens rings for focus, zoom, and iris with 0.8M gear pitch and a 200° focus rotation angle for sophisticated operability.
Optical technology to achieve 4K optical performance
By bringing together the optical performance that Fujifilm takes pride in, we have developed PL-mount lenses compatible with Super 35 mm sensors. We have achieved this high level of optical performance, which surpasses 4K, by combining a special optical glass (ED glass, specifically, fluorite) and a large-diameter aspherical lens to keep various aberrations under control. While controlling distortion and image angle variations during focusing, we have significantly improved resolution up to the edges of the screen. In addition, adopting a three-group zoom mechanism makes it possible to control variations in optical performance when zooming, demonstrating high optical performance over the entire zoom range—from wide angle to telephoto. Further, we have adopted a newly developed HT-EBC coating. It achieves even higher light transmittance and lower reflectance compared to conventional EBC coatings, and improves red and blue transmittance. It enables 4K video expression with rich color fidelity.
Adoption of nine-blade aperture diaphragm
For Fujinon cine lenses, to improve image delineation of the more natural out-of-focus areas, we ran computer simulations to optimize the number and shape of the diaphragm blades, and we developed a nine-blade aperture diaphragm. The speculars produced when shooting point sources of light are more rounded, making it possible to render a beautiful natural blur.
Mechanical design that gives careful consideration to ease of operation
To suit the user’s preferences, Fujinon cine lenses have adopted a mechanical design that emphasizes ease of manual operation.
- Smooth movement with no torque variation and no sticking when turning the zooming/focusing ring enables precise operation.
- Uniform 0.8 mm gear pitch for focus, zoom, and iris. The front lens diameter is also uniform across the series, thus ensuring compatibility with standard lens operating accessories, such as existing matte boxes, follow-focus systems, etc.
- Universal design with easily readable original fonts for easy operation on location.
- Focus scale can be selected from U.S. customary units (feet) or metric units (meters) to suit the user’s needs; standard is U.S. customary units notation.