The EF 24‎-70mm f/4L IS USM Lens from Canon is optimized for full‎-frame 35mm sensors‎,‎ and another entry into Canon‎'‎s high quality L‎-series of lenses‎.‎ It has two Super Ultra‎-low Dispersion ‎(‎Super UD‎)‎ and two standard UD lens elements working together to minimize chromatic aberrations‎,‎ and reduce color blurring around the edges of your subject‎.‎ Its two types of aspherical elements combine to help reduce spherical aberration over the entire image area and the full zoom range‎.‎ Optimized lens coatings help ensure exceptional color rendering while minimizing ghosting‎.‎

Its ring‎-type Ultra Sonic Motor ‎(‎USM‎)‎ and high‎-speed CPU‎,‎ with optimized AF algorithms‎,‎ ensure you experience quick‎,‎ quiet and precise autofocusing whenever you need it‎.‎ The lens has improved dust and water resistance to protect it from damage outdoors‎,‎ while fluorine coatings on the front and rear lens surfaces resist fingerprints and smearing‎.‎ The circular nine‎-bladed diaphragm delivers beautiful‎,‎ soft background effects‎.‎ A zoom lock lever holds the zoom position at the 24mm wide end for safe transporting while attached to an EOS DSLR camera over the shoulder ‎- preventing lens creep‎.‎

Hybrid Image Stabilization ‎(‎IS‎)‎ Introducing image stabilization to their 24‎-70mm L‎-series lenses‎,‎ Canon‎'‎s Hybrid IS provides four stops of effective shutter speed compensation for both types of camera shake when shooting macro photography‎:‎ angular and shift‎.‎ This means you can shoot in dimmer conditions‎,‎ capturing images with shutter speeds up to four stops slower than would otherwise be possible‎.‎ Dual UD & Super UD Lens Elements This lens‎'‎ optical design utilizes two Super UD and two UD lens elements to minimize chromatic aberration in the edges of your wide‎-angle shots‎.‎ It also eliminates color blurring around the edge of your subjects‎,‎ for images with greater resolution and contrast‎.‎ Dual Aspherical Lens Elements In addition to the UD elements‎,‎ this lens combines two types of aspherical lenses to reduce spherical aberration and achieve high image quality across both the entire screen area and throughout the full 24‎-70mm zoom range‎.‎ Ring‎-Type Ultra Sonic Motor ‎(‎USM‎)‎ A ring‎-type USM and high‎-speed CPU with optimized AF algorithms enable silent and fast autofocusing to help you focus right on the action‎.‎ Minimum Focusing Distance‎:‎ 1.25‎'‎ This lens has a minimum focusing distance of 1.25‎'‎ ‎(‎0.38 m‎)‎ across the entire zoom range‎,‎ excluding the macro mode‎.‎ Macro Mode With 0.7x Magnification Full macro shooting is possible thanks to the Macro Mode Switch‎.‎ With up to 0.7x magnification‎,‎ it is easily accessible with a one‎-touch switch at the 70mm telephoto end of the zoom range‎.‎ Manual Focus Override In One Shot Autofocus mode manual focus can be applied for exacting precision‎.‎ Weather Resistant to Dust & Moisture This lens is highly resistant to dust and water‎,‎ allowing you to shoot in harsh conditions when necessary‎.‎ Fluorine Coatings Reduce Fingerprints Fluorine coatings on both the front and rear lens surfaces resist smears and fingerprints‎.‎ Zoom Lock Lever Keep your lens from unintentionally extending‎,‎ or creeping‎,‎ when you don‎'‎t want it to with the Zoom Lock lever‎.‎ It locks the zoom position at the wide end for safe transporting‎,‎ when the lens is most compact‎.‎ 9x Circular Aperture Blades With nine circular blades‎,‎ the lens‎'‎ diaphragm delivers soft‎,‎ pleasant bokeh background effects‎.‎