shutter variation manual or guide
Posted 20 January 2009 - 10:58 AM
Posted 20 January 2009 - 12:45 PM
Posted 22 January 2009 - 11:16 AM
thanks u brothers. sorry forget my email addres is
Edited by ramy, 22 January 2009 - 11:18 AM.
Posted 22 January 2009 - 11:34 AM
thanks u brothers. tongue.gif sorry forget my email addres is
Posted 22 January 2009 - 12:29 PM
hi my name is ramesh bhatnagar
Then please go to My Controls at the top of the page and edit your Display Name to that.
Basically shutter angle, in a movie camera, when combined with the frame rate, controls shutter speed.
Shorter shutter speeds and you get less motion blur and less exposure, longer shutter speeds gives you more more motion blur and more exposure -- just like in still photography.
We have been accustomed to the amount of blur when shooting at 24 fps with a 180 degree shutter (which being half-open from 360 degrees means 1/48th of a second when shooting at 24 fps).
Since 24 fps is a somewhat low frame rate to successfully create the illusion of continuous motion from a series of still images shot quickly in succession... you have to factor in "strobing", the stuttery feeling that gives you the sense that the motion is made up of too few samples over time. Too little motion blur per frame and the strobing seems more obvious and the motion is very choppy. Too much motion blur per frame and the motion looks too smeary, blurred, and artificial.
Some action films have exploited the choppy, strobey look from using shortened shutter angles.
Most film cameras don't really allow longer shutter speeds than 1/48th at 24 fps because most are limited to 180 degrees, maybe 200 degrees at the most. But many video cameras allow even longer shutter times at 24P, which can get you more exposure in low-light but more motion blur than a film camera would normally create.
Posted 25 January 2009 - 03:54 AM