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INTRO TO DIGITAL PHOTOGRAPHY
August 8, 2011
OBJECTIVES
Complete Pre Test Introduce the class website Create blogs Discuss the basic terminology associated
with Digital Photography
CLASS WEBSITE
https://klalley.wordpress.com/ URL location First thing you will visit everyday Type of Information included on site Who can visit this site Contact Information & Useful Links
BLOGS
Wordpress.com Will use this to complete daily bell
assignments Use your name as your username; add
numbers if necessary. E-mail me your link or write it down and give
to me [email protected]
BASIC TERMINOLOGY
WORDS WE WILL COVER TODAY
Digital Digital Camera Pixels Digital Photography Pixelization File Formats
DIGITAL Describes a method of storing, processing and
transmitting information through the use of distinct electronic or optical pulses that are displayed in numerical digits
Example
DIGITAL CAMERA
A type of camera that stores the photographed image electronically rather than on film.
The images are downloaded onto a computer where they can be manipulated.
PIXELS (PICTURE ELEMENTS) Pixels is short for picture elements The small dots that make up an electronic image The dots are so small they make the image appear
smooth Represents the smallest graphic unit of measurement on a
screen Megapixel = 1 million pixels. More pixels = higher resolution
DIGITAL PHOTOGRAPHY Photography where the image is exposed,
captured, and stored electronically rather than on film
Digital photography works very much the same way as traditional film photography. Light passes through the lens onto a light-sensitive
material called digital photo-sensor (DPS) this is also the equivalent of the traditional film.
The sensor is an array of millions of light-sensitive cells of photodiodes (electronic circuits) which respond to the light falling on it when the camera opens its shutter.
A corresponding signal is then created in which it is ‘digitized’ (aka given a number value) so that the computer, in your camera, can read it.
In essence, the sensor in your camera acts like it is painting your photograph by numbers.
PIXELIZATION Image-editing technique in
which an image is blurred by displaying part or all of it at a lower resolution
If you enlarge any digital image enough, the pixels will begin to show the pixelization effect
The more pixels there are in an image, the more it can be enlarged before pixelization occurs.
Example: Multimedia & image production
FILE FORMATS
a particular way that information is encoded for storage in a computer file
Types of Image File Formats JPEG GIF RAW TIFF PNG BMP PSP PSD & More
File Formats Activity
TODAY WE LEARNED ABOUT…
Class Website Blogs Digital Digital Camera Pixels Pixelization Digital Photography File Formats
TOMORROW WE WILL COVER…
Equipment Procedures Equipment Care Basic Camera Operations & Anatomy
