The "FUJINON TELECONVERTER XF1.4X TC WR" is a high-performance teleconverter capable of multiplying the focal length of mounted lenses* by 1.4x. Although the aperture becomes one f-stop higher when mounted, the teleconverter features an excellent optical design with a construction of 7 elements in 3 groups to maintain the optical performance of the original lens. Also, thanks to the unified design when mounted to a compatible lens*, the teleconverter is weather and dust-resistant and operates at temperatures as low as -10°C. This makes it possible to be used with confidence outdoors when used with the weather and dust-resistant FUJIFILM X-T1 camera body and XF50-140mmF2.8 R LM OIS WR lens.
Construction of 7 elements in 3 groups maintains the optical performance of the original lens.
By using the optimal image quality parameters for the overall characteristics of the original lens and 1.4x teleconverter, an excellent imaging performance with great aberration suppression can be achieved even when the focal length is multiplied by 1.4x.
The camera displays and records information reflecting the change in aperture and focal length when the teleconverter is mounted.
An AF speed equivalent to that of the lens by itself is still achieved when the teleconverter is mounted.
Thanks to mirrorless cameras’ “Live View” Contrast Detection autofocus, shooting at minimum aperture values is still possible despite the f-stop being increased by mounting the teleconverter. Also, accurate focusing at super-telephoto focal lengths with shallow depth of field is possible thanks to the AF performed by the image sensor.
Using the teleconverter with a weather-resistant camera and lens, such as the "FUJIFILM X-T1" premium mirrorless camera and the "FUJINON LENS XF50-140mmF2.8 R LM OIS WR", does not affect the weather resistance of the system.
|Type||FUJINON TELECONVERTER XF1.4X TC WR|
|Lens configuration||7 elements 3 groups|
|Focal length||1.4x that of original lens|
|Max. aperture||1 additional stop|
|Min. aperture||1 additional stop|
|Focus range||Approx. same as that of original lens|
|Max. magnification||1.4x that of original lens|
|External dimensions: Diameter x Length
（distance from camera lens mount flange）
|Approx. Φ58mm x 15mm|
(excluding lens caps ）