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Sony DSLR-A100K - alpha; Digital Single Lens Reflex Camera Selection Manual Page 10

Lenses and accessories selection guide.
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Sony
G Lenses
®
3 buttons Electronic
SAL70200G
Teleconverter compatible
70-200mm F2.8 G
Lens groups/elements: 16/19
Minimum focus: 7-1/" (1.2 m)
Filter diameter: 77 mm
Size: (diameter x length): 3-7/16
x 7-3/" (87 x 196. mm)
ED (Extra-low Dispersion ) glass
Weight: 2 lb 1.3 oz (130 g)
(w/o tripod mount)
High-performance lens for popular telephoto focal lengths
that features fast, continuous F2.8 aperture and comfortable
handling. Excellent contrast and clarity at all focal lengths,
with minimal chromatic aberration because of its  ED glass
elements. Quiet, responsive focusing comes courtesy of the
SSM (Super Sonic wave Motor) and internal focusing. Two
types of DMF (Direct Manual Focus) enable you to fine-tune
focus, even during AF operation. Also includes 3 focus hold
buttons and a focus range limiter.
18
SAL70200G (70-200mm F2.8 G)
Shooting distance index
Zoom ring
Tripod mount index
Shooting distance scale
Focus ring
Operation switch
Focus hold button
Focal length scale
70mm focal length
200mm focal length
MTF
MTF
100
100
80
80
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)
Open
F8
R10 line pairs/mm
R30 line pairs/mm
R10 line pairs/mm
R30 line pairs/mm
60
T10 line pairs/mm
T30 line pairs/mm
T10 line pairs/mm
T30 line pairs/mm
For details of MTF, please refer to p17.
(R: radial target, T: tangential target)
Sony G Lenses
 buttons Electronic
SAL300F28G
Teleconverter compatible
300mm F2.8G
Lens groups/elements: 12/13
(includes 1 filter)
Minimum focus: 78-3/" (2.0 m)
Filter diameter: 2 mm (rear slide-in type)
Size: (diameter x length): -13/16 x 9-9/16"
ED (Extra-low Dispersion ) glass
(122 x 22. mm)
Weight:  lb 1. oz (2310 g) (w/o tripod mount)
Versatile wide-aperture telephoto lens that produces spectacular results with
sports scenes, landscapes, portraits, and more. Provides exceptionally sharp image
quality, with 3 ED glass elements to minimize chromatic aberration. Focusing is quiet
and responsive due to the SSM (Super Sonic wave Motor) and internal focusing
mechanism. Minimum focusing distance is a class-leading 2.0 m. Great operability
comes from the pre-focus function, focus range switch, 2 DMF modes, lightweight
design, and detachable tripod mount. A large carbon fiber hood provides effective
light shielding.
Depth of field scale
Shooting distance index
Shooting distance scale
Tripod mount index
Focus hold button
Slot-in filter frame
Focus ring
Strap eyelet
Teleconverters
These attachments significantly boost the focal
length of the primary lens, with no impact on
resolving power. A handy tool for minimizing
gear. Great for landscape or sports photography.
SAL14TC
Compatible lenses
1.4x Teleconverter
SAL70200G (70-200mm F2.8G)
*1
SAL300F28G (300mm F2.8G)
Lens groups/elements: /
*1
Size: (diam x length): 2-1/2
SAL13F28 (13mm F2.8 [T.] STF)
*2
x 13/16" (6 x 20 mm)
*1 Compatible with MF and AF focusing modes.
Weight: 6 oz (170 g)
*2 Compatible with MF focusing mode only.
Icons:
Circular aperture
Internal focusing
Focus Hold Button
Focus Range limiter
• For details, please refer to the
SAL300F28G (300mm F2.8 G)
MTF
100
Focus mode switch
80
DMF switch
60
0
Focus range
20
adjust layer
Focus range
0

8
12
16
20
Distance from center of image (mm)
switch
Focus preset
Open
button
R10 line pairs/mm
R30 line pairs/mm
Buzzer
T10 line pairs/mm
T30 line pairs/mm
F8
R10 line pairs/mm
R30 line pairs/mm
T10 line pairs/mm
T30 line pairs/mm
Focus hold/
pre-focus
(R: radial target, T: tangential target)
switch
For details of MTF, please refer to p17.
SAL20TC
2x Teleconverter
Lens groups/elements: /6
Size: (diam x length): 2-1/2
x 1-11/16" (6 x 3. mm)
Weight: 7.1 oz (200 g)
ADI flash metering
SSM (Super sonic wave motor)
19
Lens Technology section on p.26–28.

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