Camera Lens

Lens Focal Length

Affects the amount of the scene shown (the angle of view) and thus the size of objects (their magnification)

•  http://www.photocourse.com/itext/focallength/

Normal Focal Length- Produces an image more Like Human Vision

Full Frame Sensor = 50 mm

Long Focal Length

•  “Telephoto” •  Full Frame Sensor = 105 mm or more •  Shallow Depth of Field •  Camera Shake more evident= faster

shutter speeds are needed

Colleen Plumb

Short Focal Length

•  “Wide Angle” •  Full Frame = 28mm or or less •  Great Depth of Field •  Wide angle distortion

Matt Black

Interchangeable Lenses

Lens Speed or “Maximum Aperture”

Image Stabilization

Prime Lens

Zoom Lens

Optical Zoom vs Digital Zoom

Macro Lenses

Catherine Chalmers

Fisheye Lenses

Donald Miralle

Filters

•  UV- Absorb ultraviolet rays. Will decrease haze from sun, protect lens

•  Polarizing- remove reflections, helps alleviate haze

Lens Hood/Shade

Automatic Focus / Focus Lock

Manual Focus

Three Factors Affect Depth of Field

1. The size of your aperture

2. Your lens focal length

3. The distance from your subject