Fujinon MK50-135mm T2.9 (Sony E) - Cinema Lens

Introducing the Fujinon MK50-135mm T2.9 (Sony E)

The Fujinon MK50-135mm T2.9 (Sony E) offers high-end optical performance, an ultra-compact, lightweight design and unrivalled value for money to meet the growing demand for high-performance equipment for film production such as that published online.

In recent years, the rapid growth in the number of films made by emerging filmmakers (corporate and commercial videos broadcast on the Internet and other media) has multiplied the opportunities for shooting with standard cinema cameras and digital stills, and increased demand for high-performance, high-resolution cinema lenses capable of perfectly reproducing the scenes filmed. Cinema lenses are an optimal choice for mastering shallow depths of field and creating a delicate "bokeh effect". However, as they are generally not very compact, heavy and costly, online film producers are opting (and at a lower cost) for the more affordable and nomadic interchangeable lenses of digital cameras. The fact remains, however, that these interchangeable digital camera lenses are designed for photography, and therefore subject to focus shifts or optical axis fluctuations during zooming. To overcome this, Fujifilm has developed new, highly compact cinema lenses with advanced optical performance and great operability to meet the expectations of emerging creative filmmakers.

Fujinon MK50-135mm T2.9 (Sony E) highlights

- high-end optical performance
- ultra-compact, lightweight design
- unrivalled value for money
- constant aperture of T2.9
- compatible with E-mount cameras

MK lenses join the Fujinon range of cinema lenses and inherit their advanced full-field optical performance and low ^distortion1, while benefiting from a compact, lightweight design and an exceptional cost/performance ratio unmatched to date.

With a constant aperture of T2.⁹², the MK series offers luminous optics across the entire focal length range, reducing depth of field and enabling magnificent bokeh effects.
The lenses are compatible with ^E-mount3 cameras featuring the Super ^35mm4 / APS-C sensor, and with the X-mount of Fujifilm X-series digital cameras (APS-C sensor). They deliver advanced optical performance while being lightweight and compact, and benefit from an optimized low optical back focal ^length5. The high-level optical and mechanical design of cinema lenses minimizes loss of focus during zooming, as well as optical axis shift and pumping (changes in angle of view during focusing), phenomena frequently observed in interchangeable digital camera lenses.
These new lenses feature three independent mechanical rings for manual adjustment of focus, zoom and aperture (iris), with a 0.8 ^m6 (module) pitch. For easy, precise and comfortable adjustment, the focus ring rotates through 200°.

Fujifilm's FUJINON lenses are world-renowned for their advanced optical performance and ability to faithfully render filmed scenes. Fujifilm will introduce the "MK" range of lenses to complement the current "HK / ZK / XK" ranges, to meet the needs of the most demanding productions.

Key features of the MK lens range

Advanced optical performance in a compact, lightweight structure

MK lenses benefit from advanced optical performance and low distortion across the entire field. Their colorimetry is harmonized with that of other FUJINON CINEMA lenses in the HK / ZK / XK series to simplify ^calibration7 when using several different lenses.

They have a constant aperture of T2.9 across the entire focal length range, facilitating the creation of magnificent bokeh effects with a shallow depth of field. This eliminates the need to readjust lighting levels, reducing shooting time.
MK series lenses are designed for E-mount cameras - with Super 35mm / APS-C sensors - and Fujifilm X-mount hybrid digital cameras (APS-C sensor). Both compact and lightweight, they boast advanced optical performance with a small optical adjustment range for optimized set-up. They are ideal for small-team shooting sessions.

Solving problems associated with the use of interchangeable lenses on digital cameras used in film production

The front focusing group and zoom group are driven independently of each other to eliminate the need to change focus while zooming, thus avoiding the need to refocus after a focal length change. This optical and mechanical design prevents the time lag often seen with an electrical control system.
The internal front focusing device avoids the effect of optical pumping (change in angle of field when focusing) to achieve smooth focusing for a spectacular scene.
The manufacturing technology developed for conventional FUJINON cinema lenses is deployed here to control optical axis shift during zoom-in or zoom-out, ensuring perfect respect for the permanent frame.

Perfect operability through dedicated cinema optics

The focusing ring can be rotated through 200 degrees, making it easy to adjust focus at shallow depths of field, when high precision is required.
The lenses feature three independent mechanical rings dedicated to focus, zoom and iris. These allow intuitive, instantaneous operations that are more precise than those obtained via an electrical mechanism subject to time lag.
Like all FUJINON cinema lenses, these rings operate with a 0.8M detent step, and allow the use of all standard cinematographic accessories such as "Follow Focus" for smooth, precise focusing.
Iris adjustment is smooth and continuous, with no jerking or clicking, and therefore no mechanical noise.

Standardized design for ease of operation

Equipped with an 85 mm diameter front lens, compatible with matte boxes.
The filter diameter of MK lenses is 82 mm, simplifying use and exchange between models.
The position of the notched rings (iris, zoom and focus) is identical for all MK series lenses, facilitating the use of accessories.
Highly versatile, they feature a macro function for close-up focusing up to 0.38m for the MK 18-55mm and up to 0.85m for the MK 50-135mm across the entire focal length range.
They also feature a "back-focus" function for adjusting and setting the optical back-focus (distance between the last lens and the sensor) for optimum adaptation of camera and lenses, thus exploiting the full potential of optical performance.

*1: "Distortion" refers to a phenomenon produced by the lens that deforms the image, causing it to contract or expand at the edges of the field.

*2: Transmittance, or "T-stop", is an index measuring the luminosity of a lens, taking into account both its number of apertures (F-stop) and its ability to transmit light. The lower its value, the brighter the lens.

* 3: Type of lens mount developed by SONY Corporation

* 4 : Super 35mm is a standard format for cinema cameras using 35mm film. It refers to a sensor size used on many cinema cameras.

* 5: Distance between lens mounting plate and sensor

* 6: No notching

*7 Color balance correction process during film editing