Bedienungsanleitung Samsung GX-20 (Seite 156 von 163) (Englisch)

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Glossary

Exif (Exchangable Image File Format)

A standard digital camera ﬁ le format established by the Japan Electronics and Information

Technology Industries Association (JEITA).

Gradation

The total contrast range of an image. Also the range of light and dark tones in a scene that

a camera sensor is capable of registering.

Histogram

A graph that shows the darkest and brightest points in an image. The horizontal axis

represents the brightness and the vertical axis represents the number of pixels. This is

useful when you wish to refer to the exposure status of an image.

Image Resolution

The term image resolution refers to the number of pixels in a digital photo. You can get a

large picture in good condition with high-resolution.

Image Quality

Image quality is affected by the compression rate of the digital image. A high-quality photo

has a low compression rate.

ISO Sensitivity

The sensitivity of the camera to light; the equivalent of ﬁ lm speed in a camera using ﬁ lm.

With a high sensitivity, images can be shot with a high shutter speed even in dimly lit

places, reducing camera shake. However, images with high sensitivity are more

susceptible to noise.

JPEG (Joint Photographic Experts Group)

An image compression method. The image is recorded in JPEG format when the quality

level is set to

(Super ﬁ ne (1)),

(Super ﬁ ne (2)),

(Fine), or

(Good). Images

recorded in JPEG format are suitable for viewing on your PC or for attaching to e-mail.

ND (Neutral Density) Filter

A ﬁ lter which reduces the amount of light entering the camera lens by a measured

amount, without affecting the picture itself.

Noise Reduction

Process to reduce noise (image roughness or unevenness) caused by slow shutter

speed.

NTSC/PAL

These are video output formats. NTSC is mainly used in Japan, North America, and

South Korea. PAL is mainly used in Europe and in China.

RAW data

Unedited image data output from the CCD. RAW data is data before being internally

processed by the camera. Settings like White balance, contrast, saturation and sharpness

can be manipulated individually on each ﬁ le. 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.

sRGB (Standard RGB)

International standard of colour space established by the IEC (International

Electrotechnical Commission). This is deﬁ ned from colour space for PC monitors and

is also used as the standard colour space for Exif.

Shutter Speed

The total exposure is proportional to the shutter speed. A fast shutter speed can capture a

stopped motion of a moving subject.

Vignetting

Vignetting occurs when corners of pictures are darkened because the subject was

blocked by the hood or ﬁ lter or the ﬂ ash was blocked.

White Balance

While shooting, colour temperature is adjusted to match the light source so that the

subject appears to have the correct colour.

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