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    EF 400mm f/4 DO IS II USM

    Super Telephoto

    Item Code: 8404B002AA
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    Overview

    The EF 400mm f/4 DO IS II USM lens delivers brilliant high-speed performance for professionals with minimal glare and superb image quality. Taking advantage of the best in lens technology, it features gapless dual-layer diffractive optical elements for improved diffraction efficiency with reduced flare. These elements are arranged with a large-diameter ground aspheric lens and a UD lens for a new level of sharpness and clarity. New coatings help to reduce ghosting, ensure excellent color balance and reduce fingerprints on the front and rear of the lens.

    Professional L-series dust- and water-resistant construction is complemented by impressive performance: a 3 mode Image Stabilization system offers up to four stops of compensation and can even prevent operational errors when the camera is mounted on a tripod. AF stop buttons placed on the front of the lens can automatically stop focusing at any time; full time manual focus ensures complete control no matter the AF mode, and a Power Focus (PF) mode makes for smooth focus transitions when shooting movies. The EF 400mm f/4 DO IS II USM focuses down to 10.8 ft. (3.3 meters), has a 9-blade aperture for pleasing, soft, out-of-focus areas, and is constructed with environmentally friendly lead-free glass.




    Features

    • Compact, lightweight super telephoto lens that is ideal for sports and wildlife photography.

    • Newly-developed gapless dual-layer diffractive optical elements deliver improved image quality with reduced flare.

    • Large diameter ground aspherical lens and UD lens for even greater optical performance.

    • Optical Image Stabilizer provides up to four shutter speed stops of correction*.

    • Three image stabilization modes (standard, panning, and during exposure only) provide exceptional results for a wide range of shooting situations.

    • For greater convenience, Image Stabilizer does not have to be disabled when shooting with a tripod.

    • AF stop buttons on the front of the lens allow you to stop autofocusing at any point.

    • Optimized lens placement and coatings deliver exceptional color balance, while minimizing ghosting and flare.

    • Highly resistant to dust and water, enabling shooting even in harsh conditions.

    • Circular aperture (9 blades) delivers beautiful, soft backgrounds.

    • Full-time manual focus allows manual focus adjustment while in AF Mode.

    • Power Focus mode enables smooth focus shifts essential for filmmaking.

    • Fluorine coating on front and rear lens surfaces reduces smears and fingerprints.

    • Minimum focusing distance of 10.8 ft./3.3 m.


    * According to CIPA (Camera & Imaging Products Association) standards.

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    Specifications

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    Focal Length & Maximum Aperture

    400mm 1:4

    Lens Construction

    18 elements in 12 groups

    Diagonal Angle of View

    6°10'

    Focus Adjustment

    Inner focusing system with USM

    Closest Focusing Distance

    10.83 ft. / 3.3 m

    Filter Size

    52mm drop-in

    Max. Diameter x Length, Weight

    Approx. 5.04 x 9.16 in. / 128 x 232.7 mm
    Approx. 74.1 oz. / 2100 g

    Compatible Supplies & Accessories

    Canon offers a wide range of compatible supplies and accessories that can enhance your user experience with you EF 400mm f/4 DO IS II USM that you can purchase direct. Scroll down to easily select items to add to your shopping cart for a faster, easier checkout. Visit the Canon Online Store

     

     

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    Resources

    MTF Charts

    A Modulation Transfer Function (MTF) chart measures a lens’ expected optical performance at the center of the picture area and measures repeatedly along the diagonal line, further and further toward the corners of the image. The higher a curve is shown on the chart, the better the lens is performing in the area the chart is measuring. As a curve moves from left to right, it displays the lens' results from center towards the corners.

    For more information on understanding how to read Canon Lens MTF charts, please click here.


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    Videos


    Canon EF 101: A Beginner's Guide

    Canon offers a wide range of EF lenses and lens accessories. In this 9 part video series you'll learn all about lens basics and the various lenses available from your host, Canon expert Jon Lorentz.

    Canon EF 101: Lens Basics

    Take a quick and informative first step into the world of lenses with Canon expert Jon Lorentz, providing insight into the type of lenses available, helpful tips and more.

    Canon EF 101: Telephoto Lenses

    Telephoto lenses let you get close in on a subject. Canon expert Jon Lorentz shows you how to get the most out of your Canon telephoto lenses.

    Canon EF 101: Lens Accessories

    Canon expert Jon Lorentz takes a look at some lens accessories including lens hoods, filters, extenders and more and how to care for them.

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    † Prices and specifications subject to change without notice. Actual prices are determined by individual dealers and may vary.

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