Product Description
Ricoh is a world leader in digital imaging integration. Its products offer dependable digital solutions for all your needs today, plus the technology to meet your demands tomorrow.
Product Description
Gopher Wire Installation Tool GOPHERPOLE Telescopes to 22'' in seconds, no loose parts to assemble, push/pull wires over long spans, non-conductive fiberglass, 4 lbs. White. ......
Product Description
Gopher Wire Installation Tool GOPHERPOLE Telescopes to 22' in seconds, no loose parts to assemble, push/pull wires over long spans, non-conductive fiberglass, 4 lbs. White.
Product Description
Gopher Wire Installation Tool GOPHERPOLE Telescopes to 22' in seconds, no loose parts to assemble, push/pull wires over long spans, non-conductive fiberglass, 4 lbs. White.
Product Description
The EF 400MM f/4 Ultra Light DO (Diffractive Optics) IS (Image Stabilizer) USM (Ultrasonic Motor) Lens gives eloquent testament to Canon's innovations and advancements in the field of optical technology. Attach an EOS EF 35mm lens to your camera, and you enter a dimension of virtually unlimited photographic possibilities. Diagonal Angle of View - 6° 10' Focus Adjustment - Inner focusing system with USM Closest Focusing Distance - 3.5m / 11.5 feet Filter Size - 52mm Drop-In Dimensions - 5.0W x 9.2L Weight - 4.3 pounds
Customer Reviews:
The best 400mm lens to carry outback.......2006-11-15
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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