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timelapse photography

time lapse intervals

  • when using wide angle lenses:
    • fast growing plants or flowers opening = 2 minutes
    • dark skies with stars = 20-30sec
    • midday sun = 20sec
    • cirrus clouds at sunset = 10sec
    • quickly moving cumulus clouds = 2-5secs
    • people walking 1-2secs

number of exposures needed

  • video clip duration in secs x video frame rate (eg. 24fps)

tricks to avoid flicker

  • flicker is generally caused by the camera changing the lens diaphragm between shots - even if the “same” aperture is used for each shot, small variations will cause some flicker
  • use the wide open aperture with a ND filter, or,
  • consider using a de-coupled lens, such as:
    • a legacy lens without electronic coupling
    • an “incorrectly” mounted electronic lens
      • set focus and aperture, then press and hold the DOF preview button while you partly dismount the lens slightly so that the aperture reading in the camera is zero

camera settings

  • manual mode or aperture priority is usually best for consistent images shot-to-shot
  • set a white balance - do NOT use auto WB, especially if shooting jpegs, although less important if shooting RAW
  • avoid auto ISO as cameras will generally increase ISO before slowing shutter speeds at these speeds
  • shoot RAW if possible
  • set max. shutter speed to twice the planned video frame rate (ie. for 24fps, use 1/50th sec or slower) to give a natural looking motion blur and avoid stuttered motion look of the video clip 1)
  • set manual focus
  • ensure you have plenty of battery life, especially in cold environments
photo/timelapse.txt · Last modified: 2015/02/03 00:12 by gary1

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