Pentax Optio A20 User Manual

92
Taking Pictures
4
Sensitivity (ISO sensitivity) is a value indicating how much the CCD senses light.
Low value equals low sensitivity, and high value equals high sensitivity.
Sensitivity can be adjusted according to the shooting situations.
Sensitivity
1 Press the MENU button in Capture mode.
The [A Rec.Mode] menu appears.
2 Use the four-way controller (23)
to select [Sensitivity].
Setting the Sensitivity
AUTO
The camera automatically selects the sensitivity from 64, 100, 200, 400
and 800. (In Blur reduction mode, 1600 is also selectable.)
You can also set ISO Correction in AUTO to 64 - 100, 64 - 200, 64 - 400,
or 64 - 800. (In Blur reduction mode, 64 - 1600 is also selectable.)
64
At lower sensitivity, images are sharper and noise is reduced, but the
shutter speed will be slower under dark conditions.
At higher sensitivity, the shutter speed can be fastened under dark
conditions, but noise will increase.
(In Blur reduction mode, 1600 is also selectable.)
100
200
400
800
Rec. Mode
MENU
Exit
Recorded Pixels
Quality Level
White Balance
AF Setting
AE Metering
Sensitivity
AWB
10M
AUTO 800
MENU
Shutter release
button
MENU button
Four-way
controller
AUTO 800
Rec. Mode
MENU
Exit
Recorded Pixels
Quality Level
White Balance
AF Setting
AE Metering
Sensitivity
AWB
10M

Pentax Optio A20 Specifications

General

Megapixel	10 MP
Sensor type	CCD
Image sensor size	1/1.8 \
Maximum image resolution	3648 x 2736 pixels
Still image resolution(s)	640 x 480, 1024 x 768, 1600 x 1200, 2048 x 1536, 2592 x 1944, 3072 x 2304, 3648 x 2736
Digital zoom	4 x
Focal length range	7.9 - 23.7 mm
Digital SLR	No
Built-in flash	Yes
Camera shutter speed	4 - 1/2000 s
Effective sensor resolution	1037000 pixels
Compatible operating systems	Windows 98/98SE/Me/2000/XP
Focal length (35mm film equivalent)	38 - 114 mm
Focus adjustment	Auto
Normal focusing range	0.35 - ∞ m
Super Macro focusing range	0.06 - 0.15 m
Macro focusing range (wide)	0.12 - 0.4 m
Light metering	Centre-weighted, Spot
ISO sensitivity	64, 100, 200, 400, Auto
Internal memory	22 MB
Compatible memory cards	sd
Maximum memory card size	4 GB
Motion JPEG frame rate	30 fps
Video formats supported	AVI
Maximum video resolution	640 x 480 pixels
Display diagonal	2.5 \
Display resolution (numeric)	232000 pixels
USB version	2.0
Scene modes	beach, Children, Documents, Night, Portrait, Sports, Landscape (scenery)
White balance	auto, daylight, Fluorescent, manual, Shade, Tungsten
Self-timer delay	2, 10 s
Product color	Silver
Battery type	D-LI8
Flash modes	auto, Flash off, Red-eye reduction
Camera shutter type	Electronic

Weight and Dimensions

Depth	23 mm
Width	88.5 mm
Height	54.5 mm
Weight	125 g