Sony PXW-FS7 Quick Reference Manual page 17

D. Preparing the camera and shooting
D2. Shutter Speed or Shutter Angle
It is recommended that to avoid issues with flicker from
some types of light fixtures that the shutter speed is
set to a multiple of the local mains electricity frequency.
Please check the mains frequency of the country you are
shooting in to determine the most appropriate shutter
speed. In a 50Hz country 1/50 or 1/100 is recommended.
In a 60Hz country 1/60 or 1/120 is recommended.
D2.1 The shutter speed or shutter angle effects how
motion is portrayed in the recordings. A very fast shutter
will freeze rapid movements in each frame of the
recording making them crisper but possibly adding judder
or jitter. Too slow a shutter speed will result in blurred
motion and handheld camera wobble can result in soft
looking pictures. In addition a fast shutter speed reduces
the amount of captured by the sensor.
The camera can display the shutter time period as either
fractions of a second (shutter speed) or in degrees. In
either case the operation of the shutter is identical, there
is no difference in the quality of the images captured.
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