Canon EF 17-40mm f4 L USM Lens



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Canon EF 17-40mm f4 L USM LensThe Canon 17-40mm f4 USM is a new and affordable L-series ultra-wide-angle zoom lens that’s ideal for both film and digital SLRs. This EF lens focuses as close as 0.28m. It has a constant f/4 maximum aperture, and offers the choice of screw-in 77mm filters or a holder in the rear of the lens for up to three gel filters. Circular 7-blade diaphragm helps produce attractive background blur. The 17-40mm f4L also features a weather-resistant construction, so you can take it anywhere with no worries about the weather conditions. Zoom or PrimeZoomFocal length – wide (mm)17Focal length – tele (mm)40Max aperture – wide4.0Max aperture – tele4.0Autofocus motorUSMLens mountCanon EFImage stabilisationNoSensor formatFull FrameFilter thread (mm)77Hood modelEW-83EMinimum focus distance0.28mWeight (g)500Size83.5×96.8mmColourBlackMinimum aperturef/22Lens elements12Lens groups9Aperture blades7Focus mechanismUSMMF switchFull-time manual over-rideTele-converter compatibilityNoEnlargement Ratio1:4.2Included Accessories: Lens pouch, front and rear caps, EW-83E lens hood

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