Just like with any 2x teleconverter, the focal length of the attached lens is doubled, with a consequent aperture reduction of two f/stops. As such, a 70-200mm f/2.8 zoom effectively becomes roughly a ...

Intro2020 has announced availability of new 1.4x and 2x Kenko Teleplus HD Pro teleconverters for Nikon and Canon DSLRs.

Photo Review Tech Editor Margaret Brown looks into the benefits and consequences of using focal length extenders. Teleconverters are popular with birders because they provide an affordable ““ and ...

Judging from the technical questions we get from readers, there is a lot of misinformation about teleconverters floating around the internet (no surprise). Here are some answers to those questions… ...