Fujifilm Fujinon GF 1.4X TC WR teleconverter review: medium format with extra reach, same quality

The Fujinon GF 1.4X TC WR teleconverter gives extra reach to a GF-mount telephoto lens, along with 1.4 times the maximum magnification ratio for close-ups

5 Star Rating
Fujinon GF 1.4X TC WR
(Image: © Matthew Richards)

Digital Camera World Verdict

There are currently no super-telephoto lenses for the Fujifilm GFX medium format system so I like that the Fujinon GF 1.4X TC WR teleconverter boosts the reach of the pair of prime and zoom telephoto lenses in the current catalog, and with very little impact on image quality or overall performance.


  • +

    1.4x boost in reach and magnification

  • +

    Excellent performance/image quality

  • +

    Tough weather-sealed build quality


  • -

    Only compatible with 2 lenses so far

  • -

    Expensive for a teleconverter

  • -

    Relatively weighty

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Fujifilm is a world-renowned photographic company that needs no introduction. It’s been going about its business since 1934, but the medium-format GFX system is comparatively in its infancy, having been launched in 2017. It certainly hit the ground running though, and I’m a big fan of the growing range of excellent Fujinon GF lenses for its medium format cameras.

Although the range is continually expanding, there are currently no GF-mount super-telephoto lenses. At the time of writing this review, the longest telephoto offerings are the Fujinon GF 250mm F4 R LM OIS WR prime and the Fujinon GF 100-200mm F5.6 R LM OIS WR zoom. Factor in the large medium format image sensor of GFX cameras and these lenses give a maximum reach equivalent to using roughly a 200mm or 160mm lens on full-frame cameras, respectively. With high hopes to be one of the all-time best teleconverters, the Fujinon GF 1.4X TC WR aims to add extra reach and versatility to the GFX system.

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MountFujifilm GF
Lens construction7 elements in 3 groups
Focal length multiplier1.4x that of main lens
Aperture reduction1 f/stop
Minimum focus distanceSame as main lens
Maximum magnification1.4x that of main lens
Filter sizeN/A
Dimensions82 x 27mm

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Matthew Richards

Matthew Richards is a photographer and journalist who has spent years using and reviewing all manner of photo gear. He is Digital Camera World's principal lens reviewer – and has tested more primes and zooms than most people have had hot dinners! 

His expertise with equipment doesn’t end there, though. He is also an encyclopedia  when it comes to all manner of cameras, camera holsters and bags, flashguns, tripods and heads, printers, papers and inks, and just about anything imaging-related. 

In an earlier life he was a broadcast engineer at the BBC, as well as a former editor of PC Guide.