Photography , Angel Tegardine Per. 2: August 2012

Thursday, August 30, 2012

Wikipedia Notes

The first recorded attempt at building a digital camera was in 1975 by Steven Sasso
The two main types of sensors are charge-coupled devices and CMOS or active pixel sensors
Digital cameras can take pictures, record sound and video and used as a webcam
The majority of professional news photographers capture their image with digital cameras\
Almost all of the cost of digital photography is capital cost
Digital cameras require batteries that need to be recharged or replaced frequently
Digital cameras eliminate the need to purchase photographic film
Image review, deletion, lighting and composition can be assessed immediately
Many digital sensors have less dynamic range than color print film
When highlights burn out, they burn to white without details
Some digital cameras do exhibit a pattern in the digital noise that is not found on film
Digital cameras have decimated the film photography industry through declining use of film rolls
Nearly all digital cameras use built-in and/or removable solid state flash memory
A digital memory device is used for storing images, which may be transferred to a computer later
Resolution in pixels is not the only measure of image quality
The number of pixels n for a given maximum resolution is the product *n* = *w × h*
The pixel count quoted by manufacturers can be misleading as it may not be the number of full-color pixels
Practical imaging systems, digital and film, have a limited "dynamic range"
"Highlight burn-out" of digital sensors can be abrupt, and highlight detail may be lost
Memory cards allow for vast numbers of photos to be taken, requiring