Quality Level; Recorded Pixels; Shutter Speed; White Balance - Pentax K10D Operating Manual

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Quality Level

This refers to the image compression ratio. The lower the compression,
the more detailed the image. The image becomes rougher as the
compression rate rises.
| data
Unedited image data output from the CCD. RAW data is data before being internally
processed by the camera. Camera settings at the time of capture, such as White
Balance, Contrast, Saturation, Tone, Color Space, Sensitivity and Sharpness can
be set for each frame after shooting. In addition, RAW data is 12 bit data that
contains 16 times the information of 8 bit JPEG and TIFF data. Rich gradations are
possible. Transfer RAW data to your computer and use the provided software to
create image data with different settings, such as JPEG or TIFF.

Recorded Pixels

Indicates the size of the image by the number of pixels. The more pixels
that compose a picture, the larger the image size.
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Sensitivity
The amount of light needed to record an image. With a high sensitivity, images
can be shot with a high shutter speed even in dark places, reducing camera
shake. However, images with high sensitivity are more susceptible to noise.

Shutter Speed

The length of time that the shutter is open and light strikes the CCD. The amount
of light that strikes the CCD can be changed by altering the shutter speed.
sRGB (standard RGB)
International standard of color space established by the IEC (International
Electrotechnical Commission). This is defined from color space for PC
monitors and is also used as the standard color space for Exif.
Vignetting
The picture edges are blackened when part of the light coming from the
subject is blocked by the hood or filter ring, or when the flash is partially
blocked by the lens.

White Balance

While shooting, color temperature is adjusted to match the light source so
that the subject appears to have correct color.