Find helpful customer reviews and review ratings for Canon EF 17-40mm f/4L USM Ultra Wide Angle Zoom Lens for Canon SLR Cameras at Amazon.com. Read honest and unbiased product reviews from our users. The dedicated Lens Hood is specifically designed for use with Canon's Zoom Super Wide Angle EF 17-40mm f/4L USM Lens. It is primarily used to prevent unwanted stray light from entering the lens by extending and shading the end of it. This Haida Rear Lens ND Filter Kit contains four filters that are each compatible with the built-in rear filter slot of a Canon EF 8-15mm f/4L fisheye USM, 11-24mm f/4L USM, 14mm f/2.8L USM, EF 15mm f/2.8 fisheye, 16-35mm f/2.8L USM, 17-35mm f/2.8L USM, or 17-40mm f/4L USM lens. Each filter can be used individually to create a darkening of the Looking at the specs and measurements, the Tamron 17-35mm f/2.8-4 Di OSD Lens vs. Canon EF 17-40mm f/4L USM Lens comparison shows these two lenses sizing up very similarly. The Canon lens' Ring USM AF system is faster and, at least on some Canon bodies, more accurate. Intro. The Canon EF 17-40mm f/4.0L was announced back in February 2003 as a lightweight ultra wide-angle zoom and has since become a bit of a classic lens for owners of Canon EOS digital and film SLRs. Its ultra-wide focal range delivers spectacular coverage on film or full-frame digital SLRs, although it’s sufficiently wide to also be 30mm f/11.0 1/100s ISO 100. Tree Picture. 17mm f/4.5 1/45s ISO 100. Sunrise 2. Sunrises don't get much better than this! Beautiful orange clouds are contrasted by dark blue sky and framed by Oak and Hickory Trees in this brilliant sunrise picture. 19mm f/4.5 1/45s ISO 100. Rock Run, Ralston PA. Canon EF 17-40mm f/4L USM on Canon EOS 5D Mark II vs Canon EF 17-40mm f/4L USM on Canon EOS 5D Mark III COMPARISON SELECTION (3 selected items max.) VIEW COMPARISON ADD MORE The EF17-40mm f/4L USM is a lightweight ultra wide angle Canon EF zoom lens. Ultra wide lens for analogue EOS SLR camerasThe EF17-40mm f/4L USM is an ultra wide angle Canon EF zoom lens meant for professional and high amateur SLR EOS camera users. Has full-time manual focus. Canon EF 17-40mm f/4L USM. Canon EF-S 18-55mm F/3.5-5.6 IS STM. With full-time manual focus, you can move the focus ring whilst it is in AF (autofocus) mode. This means that you can make manual adjustments once the AF has finished, without changing to manual mode. X0Wr.

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