articles | galleries | reviews | forum | users | exhibitions Login | Register

Author: oryon
Viewed: 3509 times
Modified: Apr 07, 2006

8.0 (from 1 votes)

Add to   Add to
Add to   Digg this page!

Articles > Lens news Apr 06, 2006  23:16
New Tokina AT-X 840 AF D lens

In 1996 Tokina created a new class of telephoto lens when it introduced the original AT-X 840 AF. This was the smallest lens available that had a bright f/5.6 aperture at 400mm. Now Tokina is recreating the 80-400mm lens for the digital age.

Still the smallest SLR lens available that zooms to 400mm, the AT-X 840 AF D has a smooth and quick internal focusing system that means the all-metal inner barrel that houses the heaviest glass elements does not have to rotate when the lens focuses, making it much faster than the previous models.

Optically, the AT-X840 AF D has new multi-coatings applied to the elements that are formulated to compensate of the highly reflective CCD and CMOS sensors in today’s Digital SLR cameras. The new multi-coating greatly reduces the chance of internal flare or ghost reflections.

A built-in tripod collar makes for a well-balanced camera/lens combination when using a tripod or monopod. For best results, Tokina always recommends using a tripod or monopod with telephoto lenses.

Tokina kept ease of use in mind with the new AT-X 840 AF D. A new lens hood with the a PL Assist spring loaded thumb wheel allows a circular polarizer or special effects filter to be rotated while the lens hood is in place. No more removing the hood to change the position of the filter.

  • Zoom Range: 80-400mm
  • Maximum Aperture F/4.5-5.6
  • Minimum Aperture: F/32
  • Optical Construction: 16 E /10G
  • Minimum Focus Distance: 8.2 ft. (2.5m)
  • Macro Ratio: 1:5.4
  • Number of Diaphragm Blades 8
  • Filter Size: 72mm
  • Dimensions: 3.1 in. (79mm) X L 5.4 in. (136.5mm)
  • Weight: 35.9 oz. (1,020g)
  • Lens Hood BH-725
  • Availability June, 2006
Page 1 (of 1)

Article discussion >>>

© 2005 all rights reserved. | about | help