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TAMRON
AF55-200MM F/4-5.6 DI II LD MACRO
The AF55-200mm
F/4-5.6 Di II MACRO LD (Model A15), a new tele-zoom
designed exclusively for digital SLR cameras
with smaller-size image sensors* that will be
available at an affordable price.
For photographers
who bought their digital SLR camera in a kit with a
standard zoom lens but are dissatisfied with the
telephoto capability of the standard lens, the new
AF55-200mm F/4-5.6 Di II LD MACRO offers in a second
lens a desirable telephoto range at an affordable
price. The new tele-zoom from Tamron will allow
these photographers to enjoy the telephoto
capabilities that yield dynamic images in many
photographic situations including sporting events,
large wildlife, scenery and portraiture.
MAIN FEATURES
Popular-type Tele-zoom for
Exclusive Use on Digital SLR Cameras
This is a telephoto zoom for exclusive use on
digital SLR cameras that covers the focal length
range equivalent to 85-310mm when converted to a
35mm format. The lens will allow owners of digital
SLRs fitted with standard zoom lenses to enjoy with
ease the professional-looking “pulling” and
“compression” effects particular to telephoto
lenses.
Lightweight and Compact
Design Thanks to Optical System for Exclusive Use on
Digital Cameras
Since the optical system is designed for exclusive
use on digital cameras, the image circle is smaller,
resulting in a compact package measuring 83.0mm
(3.3”), accepting a 52mm standard filter and
weighing a mere 295 grams (10.4oz.)*.
*Values given are the lens for
Nikon AF cameras.
Revolutionary Minimum Focus
Distance of 0.95m (37.4”) for 1:3.5 Macro Capability
over the Entire Zoom Range
The new 55-200mm zoom lens realizes an MFD (Minimum
Focus Distance) of 0.95m (37.4”) over the entire
zoom range, the top level of the closest focusing
distance among tele-zoom lenses. Since the maximum
magnification ratio at f=200mm is 1:3.5, you can
enjoy easy and convenient close-up photography.
*The Maximum Magnification Ratio
of 1:3.5 is equivalent to 1:2.3 when converted to
35mm film format.
Nine-blade Diaphragm
Construction for Natural Out-of-focus Effect
Since the lens employs a nine-blade almost circular
diaphragm construction, it provides naturally
blurred background effects when a natural
out-of-focus effect is desired. Such effects are
done by using the shallow depth of field of a
telephoto lens or in close-up photography,
exploiting the outstanding specifications of 0.95m
MFD over the entire zoom range and 1:3.5 maximum
magnification ratio.
Optical System Uses Special
Glass and is Optimized for Digital SLR
Characteristics in order to Enhance Optical Quality
in a Compact Design
The new AF55-200mm zoom lens features an entirely
new optical design for optimizing the overall
distribution of optical power while reducing various
aberrations to the absolute minimum and achieving
remarkable downsizing at the same time. In addition,
an LD (Low Dispersion) glass element is used to
accomplish effective compensation of on-axis and
lateral chromatic aberrations, a critical factor to
enhance the optical quality in digital photography.
As a result, the lens provides outstanding optical
performance over the entire zoom range.
Optical Design Dedicated to
Digital SLR Photography by Optimizing the Angles of
Incidence of Light Rays Reaching the Image Sensor
The zoom lens uses a new optical system designed to
confine the changing angles of incidences of light
rays reaching the imager within a certain scope over
the entire image field by considering the effects of
variances due to zooming.
Enhanced Peripheral
Illumination
Peripheral light fall-off is minimized when compared
with that of conventional lenses for film cameras,
so images are uniformly bright from the center to
the periphery.
Outstanding Resolution
Since the lens is designed exclusively for digital
SLR photography, it provides high image quality
resolution, contrast and flatness of image field.
Internal Surface Coating to
Reduce Ghosting and Flare
By the employment of “Internal Surface Coatings”
(i.e., multiple-layer coatings on cemented surfaces
of plural elements) and new multiple-layer coating
technology on ordinary elements, ghosting and flare
due to reflections that occur when light enters
through the front element and reflections caused by
the imagers themselves are reduced to the absolute
minimum.
New External Design on the
New Di II Series Conveys “High Performance, High
Precision Image”
Improvements have been made to the external design
by adding a gold-colored band between the focus and
zoom rings to enhance the appearance and make it
stand out as a Di-II lens. The rubber patterns of
the zoom and focus control rings have been improved
at the same time to compliment the digital camera
design style and to provide better handling.
Super Hybrid Mount for High
Durability and Lightweight Design
The lens features a super hybrid mount made of
highly durable, lightweight engineering plastic
precisely molded around a stainless steel “core”
that is also highly durable. The lens mount portion
weighs 70% less than a brass-made mount.
SPECIFICATIONS
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Model Name |
A15 |
|
Focal Length |
55-200mm |
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Maximum Aperture |
F/4-5.6 |
|
Angle of View |
28°28' - 7°59' (APS-C
size equivalent) |
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Lens Construction |
13 elements in 9 groups
|
|
Minimum Focus Distance |
37.4" (Over the entire
zoom range) |
|
Maximum Magnification
Ratio |
1:3.5 (at f=200mm, MFD
0.95m) |
|
Filter Diameter |
Æ52mm |
|
Overall Length |
3.3 inches*
|
|
Maximum Diameter |
Æ2.8 inches
|
|
Weight |
10.4oz.* |
|
Diaphragm Blades |
Nine blades
|
|
Minimum Aperture |
F/32 |
|
Standard Accessory |
Lens hood |
|
Compatible Mount |
Canon AF
Konica Minolta AF-D
Nikon AF-D |
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