The 2011 release of the X-Pro1 ($399.00 at Amazon) marked the birth of a new lens system—in prior years, Fuji SLRs had used Nikon lenses. Launching with just three primes, the system has matured to the point where there are nearly two dozen lenses available from Fujifilm alone.

APS-C Sensor Format

Fujfilm has two mirrorless systems, one APS-C and one medium format. We haven't reviewed enough lenses for the medium format GFX 50S to merit a roundup, so everything here is for the APS-C X-mount system.

An APS-C sensor is the same size you'll find in consumer SLRs, but smaller than 35mm film and full-frame mirrorless offerings from Sony and Leica. As such, you'll want to multiply the focal length of a lens by 1.5 to get a feel for its field of view if your brain thinks about optics in full-frame terms. If you're used to shooting with APS-C lenses, that's not necessary.

Fuji's native lenses range in coverage from 10mm all the way to 400mm. That range is equivalent to 15mm through 600mm in 135 format—basically, an ultra-wide angle through an extreme telephoto. You can stick to lenses from Fujifilm, but there's also third-party support from Zeiss (in its Touit line) and, if you don't mind manual focus, from Lensbaby and Samyang.

See How We Test Digital Cameras

Cameras tend to be a little pricier than competing mirrorless models from Olympus, Panasonic, and Sony—even the entry-level X-A3 is priced at $600 with a bundled lens. But they're also pretty solid performers in tests, and Fujifiilm has continued to provide firmware updates for older models. It's also the only autofocusing mirrorless system that offers models with an optical viewfinder—in the form of the X-Pro1 and its successor, the X-Pro2 ($799.95 at Amazon) .

Non-Native Lenses

Like other mirrorless systems, you can use manual focus SLR and rangefinder lenses via a simple mechanical adapter—Fuji even makes its own adapter for Leica lenses. The APS-C sensor size means that the lenses won't be quite as wide as you remember them being on film bodies, but the ability to use vintage glass expands the creative possibilities of the system.

If you're interested in investing in the Fujifilm X system, or if you've already bought in and are shopping for a lens, be sure to peruse our favorites among the lenses that we've reviewed. We haven't managed to test every single one—but we've looked at most of them, and are working to update some older reviews. We started testing Fujifilm lenses on 16MP sensor bodies, but more recent models have moved to 24MP.

If you're in the market for a new mirrorless body, you can check out the Best Mirrorless Cameras we've tested. And all of the cameras and lenses we've reviewed can be found in our Digital Cameras Product Guide.