Zoom Lenses - Sony DSLR-A100K - alpha; Digital Single Lens Reflex Camera Selection Manual

Zoom Lenses

SAL1118
APS-C format lens
DT11-18mm F4.5-5.6
• Lens groups/elements: 12/1
• Minimum focus: 9-13/16" (0.2m)
• Filter diameter: 77 mm
• Size: (diameter x length): 3-1/
x 3-3/16" (83 x 80. mm)
Aspherical lens ED glass
• Weight: 12.7 oz (360 g)
Super wide-angle zoom lens designed for SLRs with an
APS-C size image sensor. Zoom range is equivalent to16.–
27 mm in 3 mm format. High contrast is maintained
throughout the zoom range, and features such as aspheric
lens elements and ED glass serve to minimize flare,
spherical aberrations, and coma aberrations. Includes
circular aperture for beautiful defocusing, especially
of point light sources in night scenes. Internal focusing
optimizes AF operation.
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SAL1118 (DT11-18mm F.-.6)
SAL1870
APS-C format lens
DT 18-70mm F3.5-5.6
• Lens groups/elements: 9/11
• Minimum focus: 1-1/16" (0.38m)
• Filter diameter:  mm
• Size: (diameter x length): 2-/8 x 3"
(66 x 77 mm)
Aspherical lens ED glass
• Weight: 8.3 oz (23 g)
Versatile zoom lens that covers many commonly used
focal lengths. Range is from wide-angle to medium
telephoto, equivalent to 27–10 mm in 3 mm format. This
lens is a compact and lightweight zoom lens designed
specifically for APS-C format SLRs. Includes aspheric
elements and ED glass to correct various aberrations at
wide-angle settings. Provides outstanding clarity at all
focal lengths, and short minimum focusing distance. Ideal
for a variety of subjects.
Zoom Lenses
SAL18200
APS-C format lens
DT 18-200mm F3.5-6.3
• Lens groups/elements: 13/1
• Minimum focus: 17-11/16" (0. m)
• Filter diameter: 62 mm
• Size: (diameter x length) 2-7/8
x 3-3/8" (73 x 8. mm)
Aspherical lens ED glass
• Weight: 1.3 oz (0 g)
A zoom lens designed specifically for SLRs with an
APS-C size image sensor, featuring a wide zoom range
that's equivalent to 27–300 mm in 3 mm format. Includes
3 aspheric lens elements and 2 ED glass elements to
suppress flare and correct various optical aberrations.
Capable of capturing images with high contrast and rich
tonal variation. Its circular aperture makes for pleasing
defocusing effects, and the internal focusing mechanism
ensures smooth AF operation.
Icons:
Circular aperture Internal focusing Focus Hold Button Focus Range limiter
• For details, please refer to the
SAL18200 (DT18-200mm F3.-6.3)
Sony DT Lenses
The APS-C size image sensor used in digital
SLRs has slightly different optical requirements
than 3 mm format, as can be seen by
comparing 2 images taken at the same focal
length. DT lenses feature downsized optics that
are optimized for the smaller angle of view of
APS-C size image sensors. These optics also
result in more compact lens bodies.
3 mm format
APS-C size image sensor
DT Lenses cannot be used with 3 mm format cameras.
ADI flash metering SSM (Super sonic wave motor)
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Lens Technology section on p.26–28.