Sony DSLR-A100K - alpha; Digital Single Lens Reflex Camera Selection Manual page 12

Carl Zeiss Lenses
®
SAL135F18Z
Sonnar T * 135mm F1.8 ZA
• Lens groups/elements: 8/11
• Minimum focus: 28-3/8" (0.72 m)
• Filter diameter: 77 mm
• Size: (diameter x length): 3-1/2
x -1/2" (88. x 11 mm)
ED (Extra low Dispersion) glass
• Weight: 2 lb 3.2 oz (99 g)
A standout among medium telephoto lenses due to its
large maximum aperture and 3 ED glass elements that
compensate for chromatic aberration. Demonstrates
high resolving power even at wider apertures and also
sharpness from corner to corner, which allows for subtle
details to be captured faithfully. Another key benefit is the
powerful close-up capability, as 0.2x magnification can
be obtained with high image quality at the lens' minimum
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SAL13F18Z (Sonnar T * 13mm F1.8 ZA)
MTF Open MTF F8
100 100
80 80
60 60
0
0
20 20
0  8 12 16 20 0  8 12 16 20
Distance from center of image (mm) Distance from center of image (mm)
R10 line pairs/mm
R20 line pairs/mm R0 line pairs/mm
T10 line pairs/mm T20 line pairs/mm T0 line pairs/mm
For details of MTF, please refer to p.21.
(R: radial target, T: tangential target)
focusing distance of 0.72 m. In terms of operability,
the internal focusing mechanism provides fast
autofocusing, and the focus ring does not rotate during
AF operation. Focus hold button is also included. When
used in conjunction with Super SteadyShot image
®
stabilization, this lens is excellent for handheld shooting
in low-light conditions.
Carl Zeiss Lenses
SAL1680Z
APS-C format lens
Vario-Sonnar T *
DT 16-80mm F3.5-4.5 ZA
• Lens groups/elements: 10/1
• Minimum focus: 13-3/" (0.3 m)
• Filter diameter: 62 mm
• Size: (diameter x length): 2-13/16
Aspherical lens
x 3-1/"
• Weight: 1.7 oz ( g)
Zoom lens designed specifically for digital SLRs with APS-C
size image sensor, with unusually wide angle to telephoto
zoom range that's equivalent to 2–120 mm in 3 mm format.
Includes 2 glass-molded aspherical elements to deliver
high contrast and a clear, luminous quality to your images.
The optical system is optimized for digital SLRs, which ensures
high optical performance even while overall lens size is kept
small. Other advantages include comfortable handling and
operation, plus a circular aperture for beautiful defocusing.
Icons:
Circular aperture Internal focusing Focus Hold Button Focus Range limiter
• For details, please refer to the
T *
SAL1680Z (Vario-Sonnar DT 16-80mm F3.-. ZA)
16 mm focal length
MTF Open MTF Open
100 100
80 80
60 60
0 0
20 20
0 3 6 9 12 0 3 6 9 12
Distance from center of image (mm) Distance from center of image (mm)
80 mm focal length
MTF Open MTF Open
100 100
80
80
60
60
0
0
20
20
0 3 6 9 12
0 3 6 9 12
Distance from center of image (mm)
Distance from center of image (mm)
R10 line pairs/mm
R20 line pairs/mm R0 line pairs/mm
T10 line pairs/mm T20 line pairs/mm T0 line pairs/mm
For details of MTF, please refer to p.21.
(R: radial target, T: tangential target)
ADI flash metering SSM (Super sonic wave motor)
23
Lens Technology section on p.26–28.