Section+1,+Table+6+-+digital+media


 * DIGITAL MEDIA **


 * ** Digital imagery **
 * o Uses an electronic image sensor to record images data vs. chemicals on film
 * o 2 types of sensors are CCD and CMOS sensors
 * ** Pixel ** – single element point or dot that contains color
 * o A pixel can only be on/off
 * ** Bit depth ** – the number of bits of information each pixel can understand
 * o The number of bits a pixel can understand is correlated to how many bits are in the monitor
 * ** 8 bit computer ** = 28 different colors can be displayed
 * ** Digital photography terminology **
 * o Focal Length
 * § The distance between the center of a lens or curved mirror and its focus
 * o Aperture
 * § The opening that determines how much light you let into the camera
 * o ISO
 * § The measure of photographic film’s sensitivity to light
 * o Shutter Speed
 * § The length of time a camera’s shutter is open
 * o sRGB
 * § A standard RGB color space for use on monitors, printers, and the internet
 * o Exif data
 * § (Exchangeable image file format) a standard that specifies the formats for images, sound, and tags used by digital cameras
 * o RAW image format
 * § A basic format with minimally processed data
 * ** JPEG **
 * o (*.jpg) (Joint Photographic Experts Group)
 * o Standard web image file type
 * o Compressed, lossy
 * ** GIF **
 * o (Graphics Interchange format)
 * o 256 colors maximum
 * o Can animate in short loops
 * ** PNG **
 * o (Portable Network Graphics)
 * o Replaced GIFs because they’re much more flexible, color wise.
 * ** For small web graphics, use PNGs. **
 * ** For animated web graphics, use GIFs. **
 * ** Composition of photography **
 * o Pick on focal point and isolate the subject
 * o Simplify your background
 * o Avoid unrelated subjects
 * o Rule of Thirds
 * § Avoid centering objects
 * § Place the center of interest in the intersection of the 4 imaginary lines in the rule of thirds