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RAW | RAW is a file option available on
some digital cameras. It usually uses a lossless compression and
produces file sizes much smaller than the TIFF format. Unfortunately,
the RAW format is not standard among all camera manufacturers and some
graphic programs and image editors may not accept the RAW format. The
better graphic editors can read some manufacturer's RAW formats, and
some (mostly higher-end) digital cameras also support saving images in
the TIFF format directly. There are also separate tools available for
converting digital camera raw image format files into other formats. | Readout | Readout refers to how data is
transferred from the CCD or CMOS sensor to the host computer. Readout
rate is an important specification for high-resolution digital cameras.
Higher readout rates mean that more images can be captured in a given
length of time. | RGB | The RGB color model utilizes the additive model in which red, green, and
blue light are combined in various ways to create other colors. The
very idea for the model itself and the abbreviation RGB come from the
three primary colors in additive light models. Note that the RGB color
model itself does not define what exactly is meant by red, green and
blue, so that the same RGB values can describe noticeably different
colors on different devices employing this color model. While they share
a common color model, their actual color spaces can vary considerably. | Ring Light
| Lighting with a ring configuration | Rolling Shutter
| Some CMOS sensors operate in rolling shutter mode only so that the rows
start, and stop, exposing at different times. This type of shutter is
not suitable for moving subjects except when using flash lighting
because this time difference causes the image to smear. (see global
shutter) | RS-232 | RS-232 is a long-established standard that describes the physical
interface and protocol for low-speed serial data communication between
devices. This is the interface that e.g. a computer uses to talk to and
exchange data with a digital camera. | Ruggedized Lens
| Lens capable of surviving extreme environmental conditions |
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