FUJINON GF250mm F4 R LM OIS WR Lens

  • FUJIFILM G Mount
  • 197.5mm (35mm Equivalent)
  • Aperture Range: f/4 to f/32
  • One Super ED Element, Two ED Elements
  • Linear AF Motor, Internal Focusing
  • Optical Image Stabilization
  • Focus Preset Function Button
  • Fluorine-Coated Front Element
  • Dust- and Weather-Sealed Construction
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Description

FEATURES

Telephoto Prime Lens for G Mount

 

Ultra-High Image Quality

The lens is composed of 16 lenses in 10 groups including one super ED lens and two ED lenses, reducing chromatic aberration and achieving excellent image quality. Especially, super ED lens is used to reduces the fluctuations in chromatic aberration depend on the shooting distance. It enables to shoot minimum 1.4m close focus, maximum 0.22 x magnification ratio, and tele-macro shots with large bokeh effects.

 

Strong Image Stabilization

The lens is equipped with a powerful five-stop image stabilization function (CIPA guidelines). This allows photographers to make maximum performance of the GFX’s high image resolution even when taking telephoto shots where image shake might be obvious.

 

Various Functions

The lens’ functionality includes a focus limiter to enable faster autofocus speed by restricting focus range, focus pre-set for memorize focus settings previously set into the lens, and 4 focus control buttons located at the lens front enable to operate focus lock or autofocus.

  • An upgrade to the GFX50S firmware is required to operate the focus pre-set function and focus control buttons.
    This functionality is included in the new version of the GFX50S firmware that will be released at the same time.

 

Silent and High-Speed Autofocus

The linear motor to drive the focus lenses achieves high-precision, silent, and fast autofocus operation. In addition, the lens also now includes a new mechanism for fixing the linear motor position when turning the power off or playback, allowing the focus lens to be fixed.

 

Robust Design Appropriate for Various Tough Shooting Environments

The lens barrel is made with a magnesium alloy, ensuring both robust structural integrity and a light weight. Sealing has been applied to the lens in 18 different locations for dust and weather resistance and the ability to operate at temperatures of down to -10°C. A fluorine coating is also applied to the front lens element to repel water and dirt under tough outdoor situations.

 

1.4x Teleconverter

Fujifilm is simultaneously launching the 1.4x teleconverter (GF1.4X TC WR) which allows for telephoto shooting at a focal length of 350mm (approximately 277mm in 35mm format equivalent) while maintaining superior image quality. The maximum aperture is reduced by one F stop. As both the lens and the teleconverter are high quality, there’s hardly any deterioration in MTF when the teleconverter is attached.

 

Lens Configuration

FUJINON LENS GF250mmF4 R LM OIS WR

MTF Chart

Vertical axis : Contrast
Horizontal axis: Distance from the center of the image
S : Sagittal
M : Meridional

 Spatial frequency 10 lines/mm

 Spatial frequency 20 lines/mm

 Spatial frequency 40 lines/mm

SPECIFICATIONS

Type GF250mmF4 R LM OIS WR
Lens configuration 16 elements 10 groups (includes 2 ED elements, 1 Super ED element)
Focal length (35mm format equivalent) f=250mm (198mm)
Angle of view 12.5°
Max. aperture F4
Min. aperture F32
Aperture control
  • Number of blades: 9(rounded diaphragm opening)
  • Step size: 1/3EV (19 steps)
Focus range 1.4m – ∞
Max. magnification 0.22x
External dimensions : Diameter x Length* (approx.)
* distance from camera lens mount flange
ø108mm x 203.5mm
Weight* (approx.)
**excluding caps, hoods and tripod collar foot
1,425g
Filter size ø82mm

 

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Brand

Fujifilm