The Nikon Z Teleconverter TC-2.0x aims to make amends. Traditionally, teleconverters have earned a dubious reputation for spoiling the image quality of lenses that they’re coupled with. That’s not surprising because a teleconverter is a bit like a glorified magnifying glass that enlarges a portion of the image circle from a lens, while also magnifying every imperfection in its optical performance. Autofocus can also be affected, resulting in relatively pedestrian speeds. But as we’ve reported previously, Nikon says its Z-mount teleconverters will not degrade image quality, and that you’ll ‘enjoy the focusing speed you’ve come to expect from Nikon Z’. We’re here to put those claims to the test, for the TC-2.0x as well as for the TC-1.4x, reviewed separately.
