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 ...

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 ...

I currently have Canon T2i and the following lenses; Canon 50mm 1.8, Sigma 18-50mm 2.8-4.5 and Canon 70-300 4-5.6 IS US as a newbee (picked up all that just 3-4 months ago) I am just learning the ins ...

A leaker has claimed that Apple is testing an add-on lens for its iPhones. But why hasn't Samsung adopted this just yet?

It's a telephoto prime with a built-in teleconverter, letting photographers switch between two focal lengths in seconds. Here's how it works and what we know ...

Weibo tipster Smart Pikachu (translated from Chinese) claimed that Apple is currently testing the use of teleconverter lenses for the iPhone 18 series. The accompanying hashtag hints that it could ...

The kit is available for the iPhone 16 Pro and 17 Pro series. A recent rumor claimed that Apple is considering making a ...

The phone is rumored to feature dual telephoto cameras. Oppo’s camera-focused flagship, the Find X9 Ultra, is rumored to ...

Canon's EF 200-400 lens delivers terrific optics and unmatched zoom flexibility with an innovative built-in 1.4x telephoto extender. Stephen Shankland Former Principal Writer Stephen Shankland worked ...

Leica has added the Vario-Elmar-SL 100-400mm f/5-6.3 and Extender L 1.4x to the SL lens collection NEW YORK--(BUSINESS WIRE)--B&H is pleased to announce Leica’s latest addition to the SL lens lineup: ...

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