Sigma SD15 User Manual

60
ADVANCED OPERATION
This section explains the application of the more advanced
functions of your camera, when composing the expressions of
your picture.
SETTING THE WHITE BALANCE (WB)
The color of light reflected by an object can vary depending on the color of the
light source illuminating it. For example, a neutral colored object will reflect
reddish light under incandescent lighting, and greenish light under fluorescent
lighting. The human brain is able to compensate for differences in the color of
a light source, allowing us to see white objects as white independent of the
lighting condition. Film cameras rely on special color-correcting filters and film
types to adjust for these differences in lighting. Digital cameras, however, are
able to use software to mimic the adjustments made by the brain, so that colors
that appear white to the human eye also appear white in your photographs.
WHITE BALANCE OPTIONS
OPTION
COLOR TEMP. DESCRIPTION
AWB
Auto
(Default)

Select this setting to allow the camera to
automatically determine the appropriate
white balance adjustments.
Daylight
Approx.
5400 K
Select this setting when taking pictures in full
sunlight.
Shade
Approx.
8000 K
Select this setting when taking pictures in the
shade under sunny skies.
Overcast
Approx.
6500 K
Select this setting when taking pictures under
cloudy, overcast skies.
Incandescent
Approx.
3000 K
Select this setting when taking pictures
indoors under incandescent (tungsten) lighting.
Fluorescent
Approx.
4100 K
Select this setting when taking pictures
indoors under fluorescent lighting.
Flash
Approx.
7000 K
Select this setting when taking pictures with
the Sigma EF-530 DG flash.
Custom

Select this setting when using a custom
white balance. Use the [Custom WB] menu
option to create a custom white balance setting.
The "Custom" option will not be available if
no custom white balance has been set.

Sigma SD15 Specifications

General

Camera Type	Interchangeable Lens SLR Type Digital Camera
Image Sensor Size	13.8 x 20.7mm
Lenses Used	Sigma SA Mount Lenses
Picture Angle	Equivalent to 1.7x the focal length of a lens when used on a 35mm SLR camera.
Lens Mount	SA mount
Imaging Element Type	FOVEON® X3™ (CMOS)
Color Photo Detectors	14.06 Million (2652 Columns x 1768 Rows x 3 Layers)
Image Recording Format	Lossless compression RAW Data (12bit), JEPG
White Balance	8 Type (Auto, Sunlight, Shade, Overcast, Incandescent, Fluorescent, Flash, Custom white balance)
Viewfinder Type	Pentaprism SLR Viewfinder
Viewfinder Frame Coverage	98％ horizontal, 98％ vertical
Viewfinder Magnification	0.9x (50mm F1.4 at infinity)
Eyepoint	18mm
Diopter Adjustment Range	-3dpt to +1.5dpt
Auto Focus Type	TTL phase difference detection system
AF Operating Range	EV 0 to 18 (ISO100)
Focus Mode	Single AF, Continuous AF (AF Predict function), MF
Metering Systems	Evaluative Metering, Center-Weighted Average Metering, Center Area Metering, Spot metering
Metering Range	EV 1 to 20 (with 50mm F1.4 at ISO100)
Exposure Modes	(P) Program AE、(A) Aperture Priority AE、 (S) Shutter Speed Priority AE、(M) Manual
ISO Sensivity	ISO (50), 100, 200, 400, 800, 1600, (3200) *( )Extended Mode
Exposure Compensation	±3EV (in 1/3steps)
AE Lock	Push button type
Auto Bracketing	Three or five frames (in 1/3steps, Appropriate Exposure – Under Exposure – Over Exposure)
Shutter Type	Vertical-travel metal focal plane shutter, electronically controlled through entire speed range
Storage Media	SD Card / Compatible with SDHC, Multi Media Card
Aspect Ratio	3：2
Resolution	HI：2640 x 1760 MED：1872 x 1248, LOW：1312 x 880
Interfaces	USB 2.0, Video Out (NTSC／PAL)