The lens attaches directly to the camera, multiplying the fixed focal length by 0.8x. This converts the lens from 23 mm to 19 mm (from 35 mm to 28 mm in 35 mm equivalent).
The company says the WCL-X100 delivers comparable image quality even at the f/2 wide aperture setting, retaining all the original optical characteristics.
The optical construction uses four premium glass elements in three groups to keep aberrations to a minimum and also employs Fujinon’s Super EBC coating.
To use the conversion lens, select the ‘Wide Conversion Lens’ option in the X100’s shooting menu, which requires updating to Firmware version 1.30 or later. This update also allows the option to be selected via the Function (Fn) or RAW buttons.
With the ‘Wide Conversion Lens’ option selected, the camera automatically applies image processing to shots taken using the WCL-X100 to reduce image distortion, ensure balanced illumination across the frame and reduce chromatic aberration, commonly found in wide conversion lenses.
Auto focusing speed remains the same, the 10 cm macro distance still applies and the conversion lens is also compatible with the X100’s hybrid viewfinder.
With the optical viewfinder (OVF) selected, icons showing the edge of the frame are displayed instead of the frame rim (equivalent to 80 percent of the frame field of view), while selecting the electronic viewfinder (EVF) gives users a 100 percent field of view.
The optional LH-X100 lens hood and PRF-49S protective filter can be used on the conversion lens. The clip-on lens cap for the WCL-X100 can be attached with both the lens hood and filter in place.
The lens is available in two colours: silver and black.