some simple term in photo graphy

# ISO

#IEC

#JPG

#JPEG

#SHUTTER Speed

JPEG is also known as JPG. It stands for joint photographic expert group. Mostly used extensions for JPEG formats is : .jpeg, .jpg, .jpe, .jif, .jfif.

JPG standards code which define how image is compressed into stream of bytes and decompressed into an image.

A jpg scheme have 29 distinct coding processes

ISO:

International organization of standardization.;

In digital photography ISO measure the sensitivity of image sensor.The same principle apply as in film photography- the lower the number the less sensitive your camera is to light and the finer the grain.

by choosing a higher ISO you can use a faster shutter speed to freeze the movement.

IEC

International Electrotechnical Commission