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Pentax DA18-55mm and DA50-200mm lenses Press Release - 20 May 2009
PENTAX UK is pleased to announce the launch of two
compact, lightweight zoom lenses: the smc PENTAX-DA18-55mmF3.5-5.6AL WR, and
the smc PENTAX-DA50-200mmF4-5.6ED WR. Featuring a newly designed, simplified
weather-resistant construction, these zoom lenses offer excellent
reliability in various outdoor conditions — particularly rain, fog and mist.
Main features
1. Simplified weather-resistant construction
These new zoom lenses feature a simplified weather-resistant construction
designed to minimise the intrusion of water and moisture into the lens
barrel. Mount on PENTAX weather-resistant digital SLR camera bodies, assures
the user of improved durability and reliability during shooting in rain, fog
or mist.
2. SP coating to block dust and dirt
The front surface of these lenses is treated with PENTAX-original SP (Super
Protect) coating, which applies a special fluorine compound to the lens
surface through a vapour deposition process. This SP coating not only repels
dust, water and grease, but it also makes it easy to wipe off fingerprints
and cosmetics.
3. Digital-SLR-exclusive optical design
PENTAX has optimised the characteristics of these lenses — including lens
coating, curvature and positioning of optical elements — to reproduce the
finest possible digital images. As a result, they are practically free of
flare and ghost images, and bring out the best in the PENTAX digital SLR
camera bodies they are used with. Their image circle is also perfectly
proportioned to the size of the image sensor used in PENTAX digital SLR
cameras, helping to reduce the camera’s overall size and weight and
guarantee outstanding cost performance.
4. Quick-Shift Focus system for instant AF/MF
switching
After the subject is captured in focus by the camera’s AF system, the unique
Quick-Shift Focus system allows the photographer to instantly switch to
manualfocus operation for final pin-point focus adjustment.
5. Other features
1. Durable, dependable metallic lens mount
2. Lens hood with a PL (polarising filter) window included as a standard
accessory
Overview of the smc PENTAX-DA18-55mmF3.5-5.6AL WR
lens
This standard zoom lens covers focal lengths from 27.5mm wide angle to
84.5mm moderate telephoto (in the 35mm format). Incorporating a
high-performance aspherical (AL) optical element and a super-low-dispersion
glass optical element in its optics, it ensures outstanding image resolution
and remarkable brightness, even at the edges, while effectively compensating
various aberrations.
Overview of the smc PENTAX-DA50-200mm F4-5.6ED WR
lens
This telephoto zoom lens covers focal lengths from 76.5mm moderate telephoto
to 307mm super telephoto (in the 35mm format). Incorporating an extra-low
dispersion (ED) glass optical element in its optics, it assures excellent
description of the subject in various telephoto applications, including
portraiture, sports/action and landscape, while effectively compensating
chromatic aberration over the entire zoom range.
| Specification |
| |
smc PENTAX-DA
18-55mmF3.5-5.6AL WR |
smc PENTAX-DA
50-200mmF4-5.6ED WR |
| Lens mount |
PENTAX KAF
mount |
PENTAX KAF
mount |
| Lens Construction |
11 elements in 8 groups |
11 elements in 10 groups |
| Angle of View |
76 - 29° (wiith PENTAX
D-SLR camera body) |
31.5 - 8.1° (wiith
PENTAX D-SLR camera body) |
| Aperture control |
Automatic |
Automatic |
| Minimum Aperture |
F22-38 |
F22-32 |
| Number of Diaphragm
Blades |
6 |
6 |
| Minimum Focusing
Distance |
0.25m (0.82 ft.) |
1.1m (3.6mft.) |
| Filter size |
52mm |
49mm |
| Maximum Magnification |
0.34x |
0.24x |
Dimensions
(Maximum Diameter x Minimum Length) |
68.5mm x 67.5mm (2.7
inch x 2.7 inch ) |
69mm x 79.5mm (2.7 inch
x 3.1 inch) |
| Weight |
230g / 8.1 oz. (with
hood 255g / 9.0 oz.) |
285g / 10.1 oz. (with
hood 325g / 11.5 oz.) |
| Lens Hood |
PH-RBC52mm |
PH-RBD49mm |
| Tripod adapter |
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- PENTAX and smc PENTAX are
trademarks of HOYA CORPORATION.
- Design and Specifications
is subject to change without notice.
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