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Pentax SMCP-DA 16 - 45mm f/4.0 ED-AL Autofocus Zoom
Lens for Digital SLRs
The compact,
high-performance,
interchangeable smc
PENTAX-DA 16mm-45mm F4 ED AL
lens features a 3X zoom
ratio with focal lengths
covering ultra-wide to
moderate-telephoto ranges
for the angle of view
equivalent to 24.5mm-69mm in
the35mm format.
The DA-Series features a
responsive "Quick-Shift
Focus System" that allows
photographers to instantly
switch the focus mode from
auto to manual with a slight
twist of the focus ring.
Coupled with a simple,
functional design and the
elimination of an aperture
ring, this new mechanism
considerably improves the
camera's operability. The
lens also incorporates an
Extra-low Dispersion (ED)
glass lens element and two
aspherical lens elements for
true-to-life image
reproduction and overall
size reduction. The image
circle in DA-series lenses,
including the smc PENTAX-DA
16mm-45mm F4 ED AL, is
designed to perfectly match
the 23.5mm x 15.7mm size of
the CCD used in PENTAX
digital SLRs to optimize
camera performance. The new
design also contributes to a
drastic reduction in size,
weight and production cost,
compared to 35mm-format
counterparts with similar
specifications. |
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Construction |
13 elements in 10 groups
(two aspherical elements) |
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Angle of view |
83o-35 o (with *istD body) |
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F stop range |
Minimum F stop: 22 |
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Closest Focusing Distance |
0.92 ft (0.28m) |
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Maximum Magnification |
0.26X |
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Filter Size |
67mm |
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Dimensions (Length x
Diameter) |
2.8" x 3.6" (72 x 92mm) |
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Weight |
12.9 oz (365g) w/o hood |
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