Collection: Lens Accessories

Two ways to get more out of glass you already own, working on opposite logic.

• Teleconverters multiply focal length by 1.4x or 2x. The 1.4x units —Canon EF 1.4X III, Nikon AF-S TC-14E III, Sony FE 1.4x, Olympus MC-14, Sigma TC-1401— cost one stop of light; the 2x units —Sony 2.0x for E mount, Sigma TC-2001— cost two, and autofocus has a harder job with less light reaching the sensor. Each converter fits a closed list of lenses, so check compatibility before ordering.
• Mount adapters move glass between systems: Nikon FTZ II puts F lenses on Z bodies, Canon EF-EOS R puts EF lenses on RF, and the Sigma MC-11 runs Canon-mount lenses on Sony E bodies.

Eleven references, €30 to €484.