The Sony FE 70-300mm F4.5-5.6 G OSS is a solid telezoom lens for full-frame mirrorless cameras, but a narrow aperture limits use in dim light.

The AF-S Nikkor 24mm f/1.8G ED is another excellent lens in Nikon's low-cost f/1.8G prime series.

The Sigma 85mm F1.4 DG DN Art sports fantastic optics, a wide, bright aperture, and a classic focal length for portraiture—it's the lens to get if you don't want to spend on high-end Sony G Master or Leica glass.

The Voigtlander 10mm/1:5.6 Hyper Wide Heliar E is the widest rectilinear lens you can get for any full-frame camera, but its edges are soft and show a heavy vignette.

The iPro Lens Trio Kit includes three smartphone add-on lenses, but it costs as much as a camera. You can buy the lenses separately if you're put off by the sticker price.

The AF-S Nikkor 24mm f/1.4G ED is a fast wide-angle lens for Nikon SLRs, but it's expensive.

The Venus Optics Laowa 15mm f/4 Wide Angle 1:1 Macro is a versatile wide-angle lens that's capable of capturing vast landscapes and focusing extremely close for macro shots.

The Canon EF-M 18-55mm f3.5-5.6 IS STM is sharper and better made than many 18-55mm lenses, but shows noticeable distortion at wider angles.

The Sony 70-400mm F4-5.6 G SSM II offers more range than a standard telezoom lens, but sacrifices some light-gathering capability to get there.

The Fujifilm X-T2 is a fast-shooting mirrorless camera that doesn't disappoint when it comes to imaging, video, or build quality, and is backed by a strong lens library.