Olympus C3020 C-3020 Zoom Reference Manual (5.6 MB) - Page 201

Glossary of terms Cont., DPOF Digital Print Order, Format, Eclipsing Vignetting, EV Exposure Value

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Glossary of terms (Cont.) Chapter 12 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 automatically 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 time the shutter is open (shutter speed) and the amount of light that passes through the lens (aperture). ISO A method for indicating film speed by the International Organization for Standardization (ISO) (e.g. "ISO100"). 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 SmartMedia card in JPEG format when the Record mode is set to SHQ, HQ or SQ. 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. ~ Continued on next page 201

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Chapter 12
Glossary of terms (Cont.)
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 automatically 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 time the shutter
is open (shutter speed) and the
amount of light that passes
through the lens (aperture).
ISO
A method for indicating film speed
by the International Organization
for Standardization (ISO) (e.g.
“ISO100”). 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 SmartMedia
card in JPEG format when the
Record mode is set to SHQ, HQ or
SQ. 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.
~
Continued on next page