Beginning Digital Photography Dorothy Dean
Apr 07, 2016
Beginning Digital Photography
Dorothy Dean
Exposure Triangle
● Aperture+Shutter Speed+ISO= Exposure triangle
Shutter Speed
● The speed the shutter opens and closes● Expressed in fractions of a second
● 1/250th, 1/60th, etc
● Slow shutter speeds allow for more blur ● Fast shutter speeds freeze motion
Aperture
● Size of the opening in the lens● Expressed in numbers
● f2.2, f5.6, etc
● Smaller number means larger opening, larger number means smaller opening
● Large apertures make bokeh, shallow depth of field
● Small apertures give deeper depth of field
Depth of field
● The amount of the image that is sharp in your image
● Always parallel to the film plane● Controlled by size of aperture and amount of
zoom
ISO
● Term hold over from film days● Describes the sensitivity of the sensor● Expressed in 100's
● 100, 200, 400, 800, etc
● High ISO's create “noise” in the image, so keep your ISO as low as possible
Exposure Triangle
● Aperture+Shutter Speed+ISO= Exposure triangle
Choosing Metering
● Center weighted- takes the average value of the center of the image
● Spot- takes the value of a small spot
● Matrix- averages the value of the entire frame
Camera Settings
Camera Operations
Pull out your cameras!
This one's hands on.
Flickr Pool
And we move to the internet.....