Sigma SD15 User Manual

45
M MANUAL EXPOSURE
Set both the shutter speed and aperture value according to the indication of
the exposure meter. You can change the exposure, as you desire.
1
Set the “D”-Dial to the “Drive-Area” (P. 1 4).
2
Set the “Mode”-Dial to the “ M ” position.
3
Press the shutter button “Half-Way” to verify
the focus, and rotate C dial to select the
desired shutter speed.
4
While pressing button, rotate C dial
to select the desired aperture.
5
Verify the settings in the viewfinder.
To determine the exposure value using the camera’s exposure meter
Rotate the “mode”-Dial to the M position. When you press the shutter
button “Half-way”, the shutter speed and aperture value are displayed in the
viewfinder, and the display indicates the difference between the manually
selected exposure and the metered exposure. Such as
1.7 1
2
⁄
3
Step Below (under exposure)
0.0 Correct Exposure
3.0 3.0 Over (over exposure)
The exposure meter can display an exposure error of up to ± 3 stops from the
correct exposure in 1/3 steps. If the exposure error is more than three stops, the
exposure meter will blink.
● In manual exposure mode, it is possible to set the shutter speed and aperture
value by operating the C-Dial and the
button. It is possible to change
their allocated function.

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)