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The FUJI X Nature Kit is composed of the Tele lens FUJI 100-400mm f4.5-5.6 R LM OIS WR,as well as focal multiplier FUJI Tele converter XF
Now you can choose betweene l 1.4X, you will have an optic equivalent to an 840mm, which can be very interesting for photographers who are looking for the maximum possible focal length in the system FUJI X and therefore the maximum power to zoom in on the image O if you prefer the 2.0X , drop-down query.
It's a telephoto-type zoom lens, with a high-performance optical construction composed of 21 elements in 14 groups including five ED lenses and a Super ED lens to help reduce the chromatic aberration that often occurs in telephoto lenses. As a result, it offers the highest image quality in its class.
We also highlight its image stabilization system capable of withstanding up to 5 steps so you can handle it with a pulse on many of the occasions you think about it
The total weight of the assembly is less than 1.4 kg. Which taking into account what it is about can be said that it is light
It incorporates a fast focusing motor, silent and capable of fixing spotlights in an efficient and reliable way.
is a high-performance teleconverter capable of multiplying by 1.4 the focal length of mounted lenses*1. Although the aperture is a step higher when mounted, the teleconverter incorporates an excellent optical design with a 7-element structure in 3 groups to maintain the optical performance of the original lens. In addition, thanks to the unified design when mounted on a compatible lens*1, the teleconverter is resistant to inclement weather and dust and operates at minimum temperatures of -10 °C. This makes it possible to use it with confidence outdoors with the X-T1 camera body and the XF 50-140mm F2.8 R LM OIS WR lens, also weather and dust resistant.
The 7-element structure 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 the 1.4x teleconverter, it is possible to achieve excellent image performance with excellent aberration suppression when the focal length is multiplied by 1.4.
The camera displays and records information that reflects the change in aperture and focal length when the teleconverter is mounted.
An AF speed equivalent to that of the lens is achieved only when the teleconverter is mounted.
Thanks to the "Live View" contrast-sensing autofocus of mirrorless cameras, shooting with minimal aperture values is still possible despite the increase of one aperture step when mounting the teleconverter. In addition, precise focusing with shallow depth-of-field super-telephoto focal lengths is made possible by the AF performed by the image sensor.