Noboru Sonehara at the Japanese Kakaku.com Magazine has been putting Nikon's NIKKOR Z 100-400mm f/4.5-5.6 VR S lens through its paces while pairing it with Nikon's 1.4x and 2x Z-mount teleconverters.

Fujifilm has added a new teleconverter to its premium mirrorless camera "X-Series" interchangeable lens lineup that's capable of multiplying the focal length of compatible lenses by 1.4x. The FUJINON ...

Fujifilm’s X-series has along been one of the more popular mirrorless camera brands, and with styling that mimics old film SLRs and a stellar lineup of XF lenses, it’s not hard to see the appeal.

The Hasselblad teleconverter lens adds a 10x optical zoom to the Oppo Find X9 Pro's 200-megapixel camera. It's expensive but the results are fantastic. Prakhar Khanna Writer Prakhar Khanna is a Writer ...

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 ...

Olympus knows you probably want to get closer with your zoom, and the new M.Zuiko Digital 2x Teleconverter MC-20 promises double the focal length of your existing lens for when its current ...

Nikon have unveiled two new teleconverters, the traditional 1.4x and 2x variants, for their NIKKOR Z range of full-frame mirrorless camera lenses. The first lens to be compatible with these ...

The Olympus M.Zuiko Digital 1.4x Teleconverter MC-14 ($349.99) is a small accessory for select Olympus Micro Four Thirds lenses that extends the effective focal length by a factor of 1.4. The ...

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… ...

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 ...