Sigma DP1 Merrill User Manual

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Color Temperature
The numerical expression of the tone of the light, produced by a light source.
The standard unit for color temperature is degrees Kelvin (K). The sunny
daylight used as a standard near 5600 K. Low color temperature implies
warmer more yellow/red light while high color temperature implies a colder
more blue light. The typical color temperature of Tungsten light is 3200 K
grade, a personal computer is 9300 K.
Exposure.
The amount of light reaching the image sensor’s surface. The exposure is
controlled by the combination of aperture and shutter speed.
EV
Exposure Value (EV) is a numerical value that expresses the amount of
light for a given exposure, and depends on brightness of the photographic
subject and sensitivity of the film. If a photographic subject is bright, then
this numerical value will be large, and if the subject is dark then this
numerical value will be small. If two-times of light reaches the film surface
then the difference in exposure value will be +1, and if the amount of light is
reduced by half, the exposure value changes by -1.
Histogram
The histogram function is a graphic representation of how bright and dark
pixels are distributed in an image. The histogram function enables a precise
check on the exposure of the photo.
ISO Sensitivity
ISOᲢInternational Organization for StandardizationᲣ; refers to the number
assigned to each silver halide film, which indicates film speed or the film's
relative sensitivity to light, the higher the number, the greater
photosensitivity and vice versa. Digital cameras also use standard ISO
sensitivity ratings like silver halide films.
JPEG
Joint Photographic Experts Group has established a standard method for
compressing and decompressing the digitized images. If the rate of
compression is high the file size will be small but picture quality will be
decreased.
NTSC
National Television Standards Committee (NTSC) video format is primarily
used in the United States, Japan, Canada etc. The NTSC is a standard for
television and videos, which defines a composite video signal with a refresh
rate of 60 half-frames (interlaced) per second. Each frame contains 525
lines and can contain 16 million different colors.

Sigma DP1 Merrill Specifications

General

Megapixel	46 MP
Camera type	Compact camera
Sensor type	CMOS
Image stabilizer	No
Total megapixels	48 MP
Image sensor size	- \
Image formats supported	JPG
Supported aspect ratios	3:2
Maximum image resolution	4704 x 3136 pixels
Still image resolution(s)	3264 x 2176
Optical zoom	- x
Focal length range	- mm
Minimum aperture number	2.8
Number of diaphragm blades	9
Lens structure (elements/groups)	9/8
Auto focusing (AF) modes	Contrast Detection Auto Focus, Multi Point Auto Focus, Selective Auto Focus
Closest focusing distance	0.2 m
Light metering	Centre-weighted, Evaluative (Multi-pattern), Spot
ISO sensitivity	-
Light exposure modes	Aperture priority AE, Auto, Manual, Shutter priority AE
Auto Exposure (AE) lock	Yes
Fastest camera shutter speed	1/2000 s
Slowest camera shutter speed	30 s
HD type	Not supported
Motion JPEG frame rate	30 fps
Video formats supported	M-JPEG
Maximum video resolution	640 x 480 pixels
Analog signal format system	NTSC, PAL
Audio formats supported	WAV
Internal memory	- MB
Compatible memory cards	MMC, SD
Display diagonal	3 \
Display resolution (numeric)	920000 pixels
USB version	2.0
Product color	Black
Photo effects	Black&White, Neutral, Sepia, Vivid
White balance	Auto, Custom modes, Daylight, Flash, Fluorescent, Incandescent, Shade
Self-timer delay	2, 10 s
Camera file system	DCF 2.0, DPOF 1.1, Exif 2.21, RAW
On Screen Display (OSD) languages	CHI (SIMPL), CHI (TR), DAN, DEU, DUT, ENG, ESP, FIN, FRE, ITA, JPN, KOR, NOR, POL, POR, RUS, SWE
Power source type	Battery
Battery type	BP-41
Number of batteries supported	1
Cables included	AV, USB

Weight and Dimensions

Depth	64.3 mm
Width	121.5 mm
Height	66.7 mm
Weight	340 g