Conversion lenses deliver premium picture quality without having to change the F stop value. The camera body automatically recognizes it when a conversion lens is mounted, and displays a guide frame indicating the shooting area when in the OVF mode.
Wide Conversion Lens WCL-X100 II
The WCL-X100 II is a dedicated wide conversion lens that multiples the fixed focal length by approx. 0.8x, converting it to 28mm (35mm format equivalent).