Fujinon Duvo HZK25-1000mm PL Mount Box Lens, 1.5x Expander, Stabilizer

The Fujinon HZK25-1000mm PL Mount Box Lens, 1.5x Expander features a native PL mount, offering a beautiful bokeh that brings a cinematic look to live production. This lens achieves a long telephoto focal length of 1000mm (1500 with 1.5 Expander), the highest combination of magnification and telephoto reach available to date for large cinema sensors. A Dual Format Expander also allows the lens to maintain image quality in both S35 and Large Format. HZK25-1000 features all of the latest technological advancements that are now standard in most of Fujifilm’s FUJINON broadcast lenses including stabilization, Automatic Restoration of Illumination Attenuation (ARIA), Remote Back Focus (RBF), and Automatic Chromatic Aberration Correction (ALAC).

This FUJINON 25-1000 covers Super35 sensors (image diagonal 28.55mm). With its built-in 1.5x dual format expander, it covers Full Frame sensors (41.3mmØ image diagonal) and the focal length range becomes 37.5-1500 mm. Since an expander is effectively a high-quality extender, certainly it works as a 37.5-1500 mm zoom in Super35 as well.

Super35 and Full Frame digital cine cameras have been increasingly used in broadcasting, sports and live events. Large sensor cameras offer immersive images, exciting separation of subject from background, and high dynamic range compared to traditional B4 video cameras.

The new FUJINON HZK 25-1000 has an amazingly long zoom range and very wide aperture, with the quality and optical performance familiar to users of the highly respected FUJINON Premier Series. (The longest Premier zoom thus far is the HK 75-400mm T2.8-3.8.)

F2.8 at the wide end of the 25-1000 lens enables filming in low-light locations such as indoor concerts or nighttime events, with beautiful bokeh and a cinematic look. Fujifilm’s optical technology suppresses aberrations by using large aspherical and fluorite lens elements that eliminate ghosting, flares, and color fringing. Highly advanced polishing methods prevent undesirable “onion ring” effects in the out-of-focus bokehs.

Optical quality is controlled through repeated simulations using Fujifilm’s proprietary FOCUS (Fujifilm Optical Class Library and Utilities System) optical design application, which helps determine the selection of glass materials from a vast permutation of possibilities. Coatings are optimized and mechanical design is tweaked to minimize internal barrel flare. The FOCUS application simulates the lens characteristics during the design process.

The 25-1000 is box shaped for the ability to use optical elements with a large diameter. While a barrel-type body limits the use of optical elements to a diameter up to about 130 mm, this lens uses glass with diameters larger than 220 mm.

The lens maintains F2.8 without ramping up to focal lengths of 465mm and then ramps to F5.0 toward the telephoto end — 1,000mm.

There are more than 30 optical elements inside. The zoom and focus cams are connected with a belt drive, rather than with a gear drive where backlash might be physically unavoidable.

The 25-1000 is easy to use. It is also the first commercially available box-type zoom lens for large sensor cameras equipped that has optical image stabilization. This enables stable shooting while precisely compensating for vibrations on location. The latest anti-vibration mechanism and firmware utilizes Fujifilm’s ceramic ball roller system. Not only does this mechanism provide a high level of anti-vibration performance against shaking caused by footsteps and wind, but it also suppresses shaking of the hands to ensure stable image capture. Not that any camera operator would have shaking hands!

Specifications