Fujifilm GF 55mm f/1.7 R WR Lens

Fujifilm GF 55mm f/1.7 R WR Lens Summary

To coincide with the launch of the Fujifilm GFX 100 II Medium Format Digital Camera Body, Fuji has released this new standard Fujifilm GF 55mm f/1.7 R WR Lens, under their Fujinon brand. Its compact design and special optics render beautiful results with a full-frame equivalent focal width of 44mm.

This is no coincidence as it corresponds precisely to the GFX sensor’s diagonal length, providing an intuitive field of view for natural framing and composing. As with all Fujifilm medium format lenses, the GF 55mm f/1.7 includes exceptional optics, which cater to 100+ megapixel GFX medium format cameras.

Separating your subject from distractions while creating beautiful bokeh is effortless thanks to a combination of medium format depth of field, along with this lens’ bright f/1.7 aperture and 11 rounded diaphragm blades. Special aspherical and ED glass lenses also reduce aberrations, which can sometimes appear in bokeh, resulting in silky smooth and clean defocus areas.

Photographers who harness Fuji’s hybrid AF, which is found in the latest medium format mirrorless cameras are covered by a powerful DC motor, which works together with a GMR sensor (Giant Magneto Resistance). The lens is fully compatible with face and eye subject detection and tracking, which benefits photographers and creators who capture anything from portraits and fashion to weddings, street photography and moviemaking.

Key Fujifilm GF55mm F1.7 R WR Lens Features

• Bright f/1.7 aperture prime lens for medium format GFX cameras
• Gorgeous bokeh with reduced aberrations thanks to two aspherical and two ED elements
• Focal width corresponds to the GFX sensor diagonal length for intuitive compositions
• 11 rounded diaphragm blades
• Fast and accurate AF from a powerful DC motor with high-precision GMR sensor
• Compact design measuring 99.mm long which weighs only 780g
• 0.5m minimum object distance
• Weather resistant design
• Aperture ring for lens-based exposure changes
• 77mm thread for lens filters

Fujifilm GF 55mm f/1.7 R WR Lens in More Detail

Advanced optical design

Fuji’s GF55mm F1.7 R WR lens consists of 14 lens elements in 10 groups, including two ED elements and two aspherical elements, which deliver high image-resolving performance and creamy bokeh.

The lens features optimally positioned aspherical elements and makes generous use of the eight-element focusing lens group, including one of the aspherical elements and two ED elements. This effectively controls shifts in chromatic aberration, spherical aberration and comatic aberration when the focusing position changes to deliver a soft creamy bokeh and advanced image-resolving performance, characteristics of large-aperture lenses.

The maximum f/1.7 aperture and the optical design complement the larger format image sensor to create creamy bokeh and advanced descriptive capability. Users can enjoy the full appeal of the sensor in genres ranging from day-to-day snapshots to full-fledged indoor and outdoor portraiture.

Beautiful bokeh and background defocus

The aspherical elements in the lens are manufactured with extraordinary precision, utilising mould processing with a tolerance of 1/100,000th of a millimetre. There are two such elements strategically placed within the lens design, and one is situated just behind the aperture ring to manage spherical aberration and create a pleasing background blur.

The second aspherical element is located closer to the lens mount at the rear, controlling the path of light to ensure sharpness from edge to edge in the captured images.

Accurate and pleasing colour rendition

The focusing lens group comprises eight elements, incorporating one aspherical element and two ED (Extra-Low Dispersion) elements. This design results in exceptional image resolution throughout the entire focusing range. It effectively minimises axial chromatic aberration, producing smooth and aesthetically pleasing bokeh with subdued colour tones. This improvement elevates the quality of bokeh, a distinctive feature of large-aperture lenses designed for use with large-format sensors.

Ultra high resolution from near to far

Typically reserved for cinema camera lenses, high refractive elements which suppress aberration fluctuation are used as the front element, and also in the focusing group to reduce aberration. This controls spherical aberration and reduces performance shifts that occur with the movement of the focusing group. This helps to maintain advanced image-resolving performance regardless of focusing positions.

11-bladed aperture

This is the first GF lens to use 11 diaphragm blades to achieve a near-perfect circle in the aperture. This contributes to the lens’ ability to produce rounded bokeh even when the lens is stopped down slightly from being wide open, creating beautiful bokeh in a wide variety of photographic scenes.

Evolved DC motor for fast and accurate autofocus

Fujifilm's GF 55mm f/1.7 R WR lens employs a DC motor to precisely control the focusing group, which includes the aperture unit and eight elements. The motor enables swift and precise autofocus, particularly valuable when shooting with a shallow depth-of-field. This ensures that photographers can seize critical photographic moments with confidence and precision, especially when paired with the latest deep learning AF found in cameras such as the GFX 100 II.

Weather sealed design

Dust and weather-resistance is achieved through the lens barrel being weather-sealed in nine places, and the lens can be operated at temperatures as low as -10℃.

What’s in the box

• Fujifilm GF 55mm f/1.7 R WR Lens for medium format GFX cameras
• Front lens cap FLCP-77
• Rear lens cap RLCP-002
• Lens hood
• Lens pouch