November 3, 2014 at 12:12PM
Maintaining Aperture Values Throughout a Film
I keep hearing about the value of maintaining the same aperture throughout the shooting of your film (maybe going up or down a stop). Choosing instead, to adjust ISO, adding ND filters, etc. to maintain a properly exposed image. I can understand that it will create consistency if you keep the aperture level virtually the same, but I'm curious if anyone has some more insight into this technique and why people choose to do it.