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 ...
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A 300mm f/2.8 and 400mm f/4 in one prime lens? Canon might follow Nikon's built-in teleconverter super-telephoto trend
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 ...
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