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 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.
| Specifications | |
| 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 |