The Fujinon XF1.4X TC WR is a high-quality teleconverter that provides a 1.4x magnification when paired with a compatible lens. This is perfect for extending the reach of an existing telephoto lens without sacrificing image quality or affecting autofocus performance.

The teleconverter is constructed from seven elements in three groups to ensure the utmost optical performance is maintained, while only adding one f-stop to the aperture. This high-quality construction is continued on the outside with a durable, weather-resistant design to provide complete confidence when working outside in adverse conditions.
The XF1.4XTC WR is compatible with the XF100-400mmF4.5-5.6 R LM OIS WR, XF50-140mmF2.8 R LM OIS WR, XF70-300F4-5.6 R OIS LM, XF80mmF2.8 R LM OIS WR Macro.
High-quality teleconverter
Some teleconverters can degrade image quality, but that’s not the case with the XF1.4X TC WR converter. It has been designed using the same exacting optical standards as the original lenses, so you’ll get superb detail-packed results, with minimal lens aberrations at just one additional f-stop.
Fast autofocusing
The converter is mounted between the lens and the camera body, retaining full functionality with both autoexposure and autofocusing. Impressively, the focus performance remains unaffected by the converter, so focus will be just as accurate as it would be with the lens on its own.
Weather-resistant design
The XF1.4X TC WR teleconverter has been designed to withstand harsh conditions, with rubber seals to repel dust, moisture and low temperatures.
Lightweight – just 130g
The XF1.4X TC is compact and lightweight so won’t add any substantial weight to your kit. You’ll also only lose one f-stop when it’s attached to your lens.
| LENS CONFIGURATION | 7 elements in 3 groups |
| FOCAL LENGTH (35MM EQUIV.) | 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 (DxL) | 58mm x 15mm |
| WEIGHT | 130 gr |
Source: Fujifilm Official