Average Reviews:
(More customer reviews)This is my lens for handheld images of birds in flight. It's sharp and exhibits no color fringing or other chromatic aberration. By comparison, my Leitz 400mm f/6.8 Telyt shows a fair amount of color fringing outside the center region. To be fair, the Telyt is a much simpler design.
The Telyt does have higher contrast than the EF 400mm f/4 DO IS, but a levels layer in Photoshop can fix that.
The 400mm f/4 DO IS is much lighter than any 400mm f/4 lens with conventional optics. DO lenses have a diffraction element that compensates for the color dispersion of spherical lens elements. It also reduces optical complexity and size.
The f/4 speed makes autofocus faster, and allows even better isolation of subjects using narrow depth of field. While bigger and heavier than Canon's 400mm f/5.6L, the f/4 lens is light enough at 4.3 pounds that it's still easy to carry. I've used mine on hikes above 10,000 feet to photograph bighorn sheep.
IS definitely makes a difference handheld, and on a tripod below 1/125 second. Canon's 400mm f/5.6L is a non-stabilized lens.
I've taken some of my sharpest wildlife images with this lens - you can see every feather in some bird shots. Highly recommended if you can afford one.
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Product Description:
Perhaps the best 400MM lens money can buy / Incorporates Diffractive Optics, Image Stabilizater & Ultrasonic Motor technologies
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