Fujifilm Fujinon WCL-X100 B II 18mm

The Fujinon WCL-X100 B II is a wide conversion lens that turns your X100 series camera's 35mm equivalent into a 28mm equivalent while keeping the f/2.8 aperture. It integrates perfectly with the camera's viewfinder and menus, and build quality is solid. Optical performance is good in the center but soft at the edges, and macro is a weak point.

Optically, the WCL-X100 B II is a mixed bag. It scores in the 21st percentile overall for optical quality, which sounds worse than it is in practice. Center sharpness is good, but corners get a bit soft, especially wide open. For street photography and environmental portraits, this is totally fine. You're not pixel-peeping brick walls, you're capturing moments. Bokeh and aperture performance sit around the 64th and 65th percentiles respectively, which is solid for a conversion lens. You won't get crazy subject separation, but the rendering is pleasant and natural.

Autofocus speed takes a tiny hit, landing at the 54th percentile. It's still quick enough for most situations, but if you're used to the snappy AF of the bare X100 lens, you might notice a slight hesitation in low light. There's no stabilization here, and the 37th percentile ranking reflects that. You'll want to keep your shutter speed up or lean on the camera's built-in ND filter in bright conditions. Macro performance is the real weak spot, scoring just 14th percentile. This isn't the lens for close-up detail shots.

Stacked against actual interchangeable lenses, the WCL-X100 B II is a different beast. The Sigma 18-50mm f/2.8 DC DN is a zoom that covers this focal length and more, with better optical performance, but it requires a camera with a lens mount. Same goes for the Tamron 17-70mm f/2.8, which adds stabilization. If you're considering an X100 series camera versus a Sony a6000 series with the Sigma zoom, you're making a bigger decision about form factor and shooting experience. The Fuji adapter keeps the compact, dial-driven experience intact.

For Nikon Z or Panasonic L-mount shooters, the NIKKOR Z 70-200mm f/2.8 S II and Lumix S S-E100 are completely different tools for different jobs. They're telephoto zooms that cost thousands and weigh over a kilogram. The WCL-X100 B II is for a very specific person: someone who loves their X100 and wants a wider view without giving up the camera they already enjoy. It's not competing with those lenses. It's competing with the idea of buying a second camera.

Pricing on this thing is all over the place. We've seen listings from $259 up to some clearly erroneous $84,826. In the real world, you should expect to pay around $300 to $350 new, and less used. For an X100 owner, that's a reasonable price to effectively add a second focal length to your camera without buying into a whole interchangeable lens system. Compared to buying a separate wide-angle prime for an ILC setup, it's a bargain. But if you don't already own an X100, this isn't a reason to buy one. It's an accessory for people already in the ecosystem.

If you own a Fujifilm X100 series camera and have ever wished the fixed lens was just a little wider, the Fujinon WCL-X100 B II is basically made for you. This wide conversion lens screws right onto the front of your X100F (or other compatible models) and multiplies the focal length by 0.8x, giving you a 28mm equivalent field of view. It's a simple way to get more into the frame without buying a whole new camera. At 318g, it adds a bit of heft but doesn't ruin the compact feel that makes the X100 line so popular.

Image quality is a pleasant surprise for a screw-on adapter. Fujifilm designed this to work seamlessly with the built-in lens, so you keep the same f/2.8 aperture and the camera automatically recognizes the converter and adjusts the optical viewfinder guides. That means no menu diving or guesswork. It's not a zoom lens, but for street photographers and travel shooters who want a wider perspective, it's a clean solution.

Build quality is solid, landing around the 65th percentile in our database. It feels like a proper Fuji accessory, with metal construction that matches the camera body. The lens cap situation is a little fiddly, but that's a minor gripe. If you're hunting for a used one, prices seem to bounce around wildly from about $259 to some absurd listings near $85,000 (probably a data error, but still, shop smart).

Skip the WCL-X100 B II if you mostly shoot portraits or need close-up detail. The macro performance is genuinely bad, and the soft corners won't flatter face shots at the edges of the frame. If you want a wider view but also need zoom flexibility, consider selling the X100 and moving to a Fuji X-E or X-T series body with the XF 18mm f/2 or a standard zoom instead. This adapter is for dedicated X100 users who want a second focal length, not for people who need a versatile all-in-one lens.

Should you buy the Fujinon WCL-X100 B II? If you have an X100F, X100V, or X100VI and you regularly find yourself backing into walls trying to fit everything in the frame, yes. It's the easiest way to get a 28mm equivalent field of view without sacrificing image quality or the shooting experience you already like. The automatic detection and viewfinder adjustment make it feel like a native part of the camera, not a kludgy add-on.

But if you rarely shoot wider than 35mm, or if you're bothered by soft corners and don't want to carry extra gear, skip it. The fixed lens on the X100 is already excellent, and this adapter doesn't improve it. It just changes the angle of view. For the right person, it's a no-brainer. For everyone else, it'll sit in a bag unused.