Fujifilm India has launched a new broadcast zoom lens named “FUJINON HZK25-1000mm” in India. This lens claims to come with the world’s highest 40x zoom and the world’s longest focal length of 1000mm. The HZK25-1000mm is a box-type broadcast zoom lens in the dual format which supports two types of large image sensors. This new lens offers cinematic visual expressions with effects such as shallow depth-of-field for improved bokeh. These features make it an apt choice for live coverage of sporting events and music concerts. To promote this lens globally, Fujifilm has adopted the name “Duvo Box,” (which means “dual format live lens”) as its nickname.
Fujifilm Duvo Box: Price and availability
The newly-released Duvo Box will be showcased at the 2023 NAB Show. This event is one of the world’s largest international broadcast equipment shows which will be held in Las Vegas, USA from April 15 to April 19. The broadcast zoom lens has been released in India, however, the company hasn’t mentioned any specific price for the same.
Fujifilm Duvo Box: Key specs and features
The latest broadcast lens claims to deliver the world’s highest 40x zoom covering from 25mm in wide angle to the world’s longest 1000mm in telephoto. The use of the built-in expander shifts the focal length by 1.5 times to 37.5mm-1500mm, allowing users to capture a far-away subject in the size as intended.
The dual format lens is compatible with two large sensors that are common among cinema cameras. The lens normally works with the Super 35mm sensor and also supports a sensor equivalent to a 35mm full frame. It can activate the built-in expander to expand the image circle by 1.5 times.
When mounted on a camera equipped with a sensor equivalent to a 35mm full frame, the lens can deliver its maximum optical performance while maintaining the same angle of view as that of the Super 35mm sensor.
With the use of large-diameter aspherical elements and fluorite elements, polished at advanced precision, various forms of aberration are controlled thoroughly to achieve optical performance which exceeds 4K.
Ghosting, lens flair and colour bleeding are also suppressed to deliver natural and HD footage. Despite being a high-magnification lens that supports a large sensor, this lens has a maximum aperture of F2.8 on the wide-angle end. This enables filming in low-light conditions, such as an indoor concert.
The optical design application “FOCUS,” developed by Fujifilm, has been used to simulate how the background is rendered out of focus. Out-of-focus areas were separated into several layers to examine bokeh textures and achieve bokeh that naturally goes out-of-focus from the focal plane into the background. This produces cinematic visual expression which makes the subject stand out.
This lens is equipped with an image stabilisation mechanism based on Fujifilm’s “ceramic ball roller system”. It not only provides advanced image stabilisation against on-set vibrations and wind-induced movements but also controls swing-back to facilitate stable filming.

Duvo box lens also features the “Breathing Compensation Technology” which automatically corrects focus breathing (fluctuations in the angle of view) to produce natural footage that maintains a subject being filmed in a constant size.
The lens can be used in the same style as broadcast lenses involving zoom demand and focus demand while being mounted on a cinema camera. It can also be used with existing accessories. It also supports multi-camera operations, filming with multiple cameras at the same time
Users can also connect the lens to a wireless lens controller to remotely control focus, aperture and zoom. This also supports focusing by a dedicated focus operator.
The lens’s exterior is in black tones. This model also has a long top handle for stable pickup and an underside handle for better portability.