Canon Extender Ef 2x Iii. Canon Extender EF 2x III review is twice as much twice as good? Digital Camera World It increases the focal length of a lens by a factor of 2x while still delivering superb image quality The Canon Extender EF 2x III is designed to extend a lenses focal length by a factor of 2x, the redesigned Canon Extender EF 2x III delivers optical performance on par with the finest Canon super telephoto lenses
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The Extender EF 2x III is compatible with most telephoto and telephoto zoom lenses within Canon's flagship professional L-series range, extending the focal length while only reducing the effective aperture of the lens by two stop. The Canon Extender EF 2x III is designed to extend a lenses focal length by a factor of 2x, the redesigned Canon Extender EF 2x III delivers optical performance on par with the finest Canon super telephoto lenses
Manufacturer description: Designed to extend a lenses focal length by a factor of 2x, the redesigned Canon Extender EF 2X III delivers optical performance on par with the finest Canon super telephoto lenses This lens is only compatible with fixed focal length L-series lenses 135mm and over, as well as the EF 70-200/2.8L, EF 70-200/2.8L IS, EF 70-200/4L, and EF 100-400/4.5-5.6L It increases the focal length of a lens by a factor of 2x while still delivering superb image quality
Canon EF 2x Extender III Atelier Screen TV. The huge focal length increase of course comes with some penalties, including a modest financial cost, some size and weight addition and more impacting, a decrease in image quality and maximum aperture. Using the EF 2x III Extender on the popular EF 135mm f/2 USM lens, I noticed that the 'negative aspects' of the lens were magnified
. Designed to extend a lenses focal length by a factor of 2x, the redesigned Canon Extender EF 2X III delivers optical performance on par with the finest Canon super telephoto lenses This lens is only compatible with fixed focal length L-series lenses 135mm and over, as well as the EF 70-200/2.8L, EF 70-200/2.8L IS, EF 70-200/4L, and EF 100-400/4.5-5.6L