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Tokina 80-400mm f/4.5-5.6 AT-X
840-II Auto Focus Zoom Lens
A
built in tripod
collar that allows
the lens to rotate
360x and be locked
in any position, has
been added to
provide much greater
balance and
stability while the
camera is mounted on
a tripod.
The AT-X 840 AF-II
is constructed with
high quality optical
glass multicoated
lens elements
created by Hoya
Corporation, the
world's largest
manufacturer of
optical glass. The
rear element group
employs SD
(super-low
dispersion) glass to
remove chromatic
aberrations and
maximize resolution
and contrast across
the film plane. The
AT-X 840-II
suppresses flare
with two methods;
the first is an
internal flare
cutting mechanism,
independently
developed by Tokina,
located behind the
second element
group. The second is
a deep lens hood
(BH724) provided
with the lens. |
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Construction |
10
Groups/ 16 Elements |
|
Angle
of view |
29°
50' to 6° 13' |
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F
stop range |
f/4.5-f/32 |
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Closest Focusing
Distance |
8.2
ft. (2.5m) |
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Maximum
Magnification |
1:5.4 |
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Filter Size |
72mm |
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Dimensions (Length x
Diameter) |
5.4
in. (136mm) x 3.0in.
(77.2mm) |
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Weight |
37.0
oz. (1050g) |
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Notes |
SD
glass: One element
Coatings:
Multi-layer
Rotary zooming |
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For Canon
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For Konica
Minolta
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For Nikon
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