BACKGROUND
- photo reps avg light over a timeframe <-duration=shutter speed
- fast shutter speed = high ISO & low f#
- slow shutter speed = low ISO speed & high f#
CONVEYING MOTION
- when blurring a picture, there are 3 traits that need to be taken into account
- Speed- subjects moving faster will appear more blurred
- Direction of Motion- subjs moving towards or away from cam aren't as blurry as those moving side to side
- Magnification- subj will appear more blurred if they occupy greater fraction of your img frame
- moving water: shutter speed can make waterfalls appears silky or surreal
- portrait and moving train: use slow shutter speed to emph stationary subject amongst movement
MOVING WITH THE SUBJECT&PANNING
- a successful panning shot requires a shutter speed which is just slow enough to cause background to streak, but fast enough that subh still appears sharp
- key to capturing fast-moving subj: 'learn to anticipate when you subj will be in the desired position'
- pre-focusing on or near your expected subject location can therefore greatly reduce shutter lag
ZOOMING BLUR
try zooming during part of exposure to lessen effect->causes subj to have incr radial blur
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