Canon has launched its new EF 24-70 mm f/4L IS USM lens premium standard zoom lens for its full frame and APS-C DSLR cameras. This lens offers Super Spectra coatings, nine-blade circular aperture, ultrasonic focus motor, silent high-speed AF performance, full time manual focusing, dust and drip proof construction and image stabilization of 4 stop advantage. You will also get an innovative macro function which increases the flexibility of the lens making it capable of shooting a maximum magnification of 0.7x.
Being a professional L-series standard zoom lens, this lens is not bulky as you would have expected. It also weighs less at only 600g and hence it can be used on a smaller APS-C body too. This lens feels formidable in the hand, despite the fact that the outer barrel and filter thread are made from plastic. The focusing ring is of an appropriate width and has a rubbery band for grip.
The Canon EF 24-70 mm f/4L IS USM claims to have an Image Stabilization advantage of 4 f-stops over lenses without a stabilizer. He Macro/Lock switch turns the Canon EF 24-70 mm f/4L IS USM into a quality macro lens which is capable of close focusing a distance of 20cms, rather than the usual 38 cms. The focus on this lens canbe set at infinity. Auto-focusing is quick on this lens and it takes a mere 0.15 seconds to lock a subject. This lens even takes care of chromatic aberrations of purple or blue along the edges of the images. There is not much barrel distortion too on the Canon EF 24-70 mm f/4L IS USM at about 24mm wide angle focal length and there is absolutely no distortion at 35mm.
With the Canon EF 24-70 mm f/4L IS USM you can optimize the use of the lens y turning on the Macro Mode which can close focus at 20cm from the film/sensor plane and according to Canon it has a maximum reproduction ratio of 0.7x for the lens. This lens is lightweight and very flexible and will please professional photographers even at its high price. The Image Stabilization feature works well and the image quality is great.
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