Combining powerful telephoto performance with high-quality images, the affordable, lightweight and compact EF-S 55-250mm f/4-5.6 IS STM lens is the ideal companion for travel and shooting wildlife and sports. Stepping motor (STM) technology delivers smooth, quiet focusing when shooting video and the Image Stabilizer counter-acts your camera
Canon EF-S 55-250mm f/4-5.6 IS STM lens review: Updated EF-S telephoto zoom no improvement on predecessor Introduction Covering such a versatile focal range with a relatively small and lightweight construction, budget telephoto zoom lenses such as the EF-S 55-250mm f/4-5.6 IS STM are never going to be the best performing optics available.Tested on EOS 7D the EF-S 55-250mm f/4-5.6 IS STM
It also uses a UD-glass lens element to correct chromatic aberration for excellent image quality throughout the zoom range. Zoom Focal Length: 55-250mm. Lens Format: APS-C / DX. Maximum Aperture: f/4-5.6. Lens Type: Telephoto Zoom. This is when a telephoto zoom lens, like the EF-S 55-250 mm f/4-5.6 IS STM, comes into its own. Go Everywhere with Extra Reach The extra reach of the EF-S 55-250 mm f/4-5.6 IS STM perfectly compliments a standard zoom like the EF-S 18-55 mm f/3.5-5.6 IS STM.
Biggest short-coming is it is not so sharp from ~200mm on (uses only convential glass), and it does not have Image Stabilization. The EF-S 55-250 f/4-5.6 IS (I or II), introduced in 2007, is much better. Designed specifically for the "crop" digital EOS cameras, it employs a UD (Ultra-low Dispersion) element which reduces CA in increases sharpness.
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