- DSLR: Digital Single Lens Reflex
- mirror system inside lets you preview through the viewfinder the same image that is being captured on film
- prime lens; only one focal length
- zoom lenses; variable focal lengths
- kit lens; a basic lens that comes with a camera body in a ” kit,” usually not too expensive
- 70 mm it takes a photo of the object and your surroundings
- 135 mm is just the front of the object
- 300 mm is a zoom in photo of the object
- focal length sports, birds, wildlife
- or portraiture
- taking a portrait you will want to take in on 200mm
- AF (autofocus) vs. MF (manual focus)
- zoom vs. focus
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how exposure is determined: window, garden hose, tanning
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formerly ASA (American Standards Association)
- HIGH ISO value means the sensor will be MORE sensitive to light,
- also meaning it will take LESS LIGHT to get the right exposure
- more available light = lower ISO
- less available light = higher ISO
- shutter speed: how long the shutter is open
- The shutter in a camera is half a circle (180 degrees)
- your shutter speed should be double
your frame rate - camera shake: occurs with a shutter speed slower than 1/ [focal length] of a second
- fraction: focal length divided by lens diameter
- smaller number actually represents a larger opening
