Sigma SD15 User Manual

73
AUTO BRACKETING
This function of the camera lets you take a sequence of pictures of the
same subject at three different exposure levels; Appropriate Exposure,
Under Exposure and Over Exposure. If it is difficult to determine the proper
exposure, please use this function.
1
Set the “D”-dial to position.
2
Turn the “C”-dial to set the bracketing
amount. (It can be set in 1
⁄ 3 EV step
increments up to ±3 EV).
3
Set the “D”-dial to drive area (P.14 ).
■
The camera will take three pictures in the following sequence; Appropriate
exposure, under exposure and over exposure.
■ The number of Auto Bracket exposures will be displayed on the Top LCD panel
as follows. (The value of the Auto Bracketed exposure and exposure counter
will be displayed together.)
First Frame Second Frame Third Frame
■ For example: If you set the bracketing amount to 2.0, the indicator in the
viewfinder will show as follow.
P , A , S mode
M mode
First Frame
0.0
* Measured Value
Second Frame
2.0
-2.0 EV deviation from Measured Value
Third Frame
2.0
+2.0 EV deviation from Measured Value

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)