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12
Compression rate
Compression is a method of reducing file size by abbreviating some contents of data, and compression
rate denotes the amount of compression. The actual effect of the selected compression rate could vary
with the content of the image. The numbers for the compression rate selected with this camera provide
only a general scale for reference and are not precise measurements.
DCF (Design rule for Camera File system)
A standard for image files by the Japan Electronics and Information Technology Industries Association
(JEITA).
Depth of Field
Depth of Field refers to the distance from the nearest to the furthest point of perceived “sharp” focus in
a picture.
Digital ESP (Electro-Selective Pattern) Light Metering
This determines the exposure by splitting the image into 49 areas and metering and calculating the
light levels in each area.
DPOF (Digital Print Order Format)
This is for saving desired print settings on digital cameras. By entering which images to print and the
number of copies of each, the user can easily have the desired images printed by a printer or print lab
that supports the DPOF format.
Eclipsing (Vignetting)
This refers to when an object obscures part of the field of view so that the whole subject is not
photographed. Vignetting also refers to when the image seen through the viewfinder does not exactly
match the image shot through the objective lens, so the photographed image includes objects not seen
through the viewfinder. In addition, vignetting can occur when an incorrect lens hood is used, causing
shadowing to appear in the corners of the image.
EV (Exposure Value)
A system for measuring exposure. EV0 is when the aperture is at F1 and the shutter speed is 1
second. The EV then increases by 1 each time the aperture increases by one F stop or the shutter
speed increases by one increment. EV can also be used to indicate brightness and ISO settings.
Exposure
The amount of light used to capture an image. The exposure is determined by the length of time the
shutter is open (shutter speed) and the amount of light that passes through the lens (aperture).
Image pickup device
This converts light passing through the lens into electrical signals. On this camera, light is picked up
and converted into RGB signals to build a single image.
ISO
International abbreviation for International Organization for Standardization. The sensitivity setting
used in digital cameras is based on the same ISO standard used for film sensitivity. The sensitivity is
denoted as shown in “ISO 100”. Higher ISO values indicate greater sensitivity to light, so images can
be exposed even in low-light conditions.
JPEG (Joint Photographic Experts Group)
A compression format for color still images. Photographs (images) shot using this camera are recorded
onto the card in JPEG format when the Record mode is set to a setting other than
[RAW]
. By
downloading these images to a personal computer, users can edit them using graphics application
software or view the images using an Internet web browser.
M
(Manual) Mode
The user sets both the aperture and shutter speed.
NTSC (National Television Systems Committee) / PAL (Phase Alternating Line)
Television formats. NTSC is mainly used in Japan, North America and Korea. PAL is mainly used in
Europe and China.
Number of pixels (PIXEL COUNT)
The number of dots (pixels) used to create an image denotes the image size. For instance, an image in
640 x 480 pixel count is the same size as the computer screen if the monitor setting is also 640 x 480.
If the monitor setting is 1024 x 768, the image only takes up part of the screen.
147


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