Sony FE 70–200mm f/2.8 GM OSS G Master Lens attached to the A7R Mark II camera Stan Horaczek When we were first introduced to Sony’s new high-end line of G Master lenses for its Alpha 7-series ...

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 ...

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 ...

As a 1.4x teleconverter, the focal length of the attached lens is magnified by a factor of 1.4x, with a 1 f/stop reduction in aperture rating, so a 70-200mm f/2.8 zoom effectively becomes roughly a ...

BETHLEHEM, Pa., Sept. 10, 2025 /PRNewswire/ -- OM Digital Solutions Corporation is pleased to announce the release of the M.ZUIKO DIGITAL ED 50-200mm F2.8 IS PRO. Designed in full compliance with the ...

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… ...

When it comes to lenses, it’s fair to say that in most situations, the more you pay, the better the quality of the lens. Of course, there are exceptions to this rule of thumb, but with the Panasonic ...

From lens focal lengths and fill-flash to portraits, macro or stunning landscapes there are techniques for everyone. Learn how to use metering, considering composition and shoot everything from ...

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 ...