Motion blur shutter speed.

Support Basics & Interface
1

On normal reals camera’s its common to set shutter speed to 1 divided by ( twice the frame rate ).
Where some modern camera’s leave out 1/ but just use the devider ea 48 for a 24fps

The blender wiki explains it like :
Time (in frames) the shutter is open. If you are rendering at 24 fps, and the Shutter is set to 0.5, the time in between frames is 41.67 ms, so the shutter is open for half that, 20.83 ms.

The Blender GUI describes it as :
Time taken in frames between shutter open and close.
And it defaults to 0.5 (independent of the frame rate you set in blender?)

i’d like to know what i need to type to obey th shutter speed correct as when using real camera’s , what to type there ?.

2

hm its a bit strange notation all together.
The wiki should read as with 24fps = 1/24 p frame and its open half of the time 1/24(/0,5) = 20,83ms
Its not really a standard to write it down like that, but it ends up the same as in math its eaqual to 1/48 as in real camera’s
Oh well it might be handier this way then to set it according the double frame-rate.

3

The shutter value of 0.5 is considered normal or ‘correct.’ More than 0.5 causes too much blur and less than 0.5 has a ‘strobing’ appearance. Technically, however, the standard of describing a camera’s exposure time is to use the angle of the shutter, e.g. 180°.