THK Photo Products, Inc., announces the Tokina AT-X 840 AF D 80-400mm
f/4.5-5.6 lens for Digital and film SLR cameras.
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 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
todays 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.