Sony DSLR-A100 Operating Instructions

15
Within the wide focus frames, there are nine sensors (local focus frames) to lock the focus on
the subject.
Press the shutter button halfway down, and the sensor in the focused area illuminated briefly
in red to indicate where the focus is.
Focus indicator
Looking into the viewfinder or pressing the shutter button halfway down triggers the
autofocus system. The focus indicator in the viewfinder indicates the status of the autofocus
system.
• The focus may not be confirmed by just looking into the viewfinder when the camera is mounted on a
tripod or a monopod, or is placed on a table, etc. Pressing the shutter button halfway down sets the focus.
Focus
Focus indicator Status
z lit Focus locked. Ready to shoot.
lit Focus is confirmed. Focal point moves following a moving subject. Ready to shoot.
lit Still focusing. You cannot release the shutter.
z flashing Cannot focus. The shutter is locked.
• If the subject is closer than the minimum shooting distance of the attached lens, the
focus cannot be confirmed. Make sure you put enough distance between the subject
and the camera.
• You can manually release the shutter even when the indicator is flashing.
t “User’s Guide/Troubleshooting” (page 93)
Wide focus frames
Local focus frames
Focus indicator

Sony DSLR-A100 Specifications

General

Sensor Type	CCD
Sensor Size	23.6 x 15.8 mm
Effective Pixels	10.2 MP
ISO Sensitivity	100 - 1600
Viewfinder Type	Optical (pentamirror)
Screen Size	2.5 inches
Continuous Shooting Speed	3 fps
Max Resolution	3872 x 2592
Image Ratio w:h	3:2
Focal Length Multiplier	1.5x
Screen Dots	230, 000
Max Shutter Speed	1/4000 sec
Min Shutter Speed	30 sec
Metering Modes	Multi-segment, Center-weighted, Spot
Exposure Compensation	-2 to +2 EV in 1/3 EV steps
WB Presets	7
USB	USB 2.0
Dimensions	133 x 95 x 71 mm
Image Stabilization	Yes (sensor-shift)
Weight	638 g
Storage Types	CompactFlash (Type I or II)
Battery	NP-FM55H
Lens Mount	Sony/Minolta Alpha