Edited by Louis, 01 September 2005 - 01:10 PM.
Posted 01 September 2005 - 01:08 PM
Posted 01 September 2005 - 01:32 PM
Hello. I will be shooting a short film this semester for film school and I have a choice between shooting with either an Eclair ACL and a CP-16, and I just read in the Professional Cameraman's Handbook that the shutter angles of each are not 180 (170 for the CP16 and 175 for the Eclair). My question is: is this common among 16mm cameras, and will that exposure difference be noticeable? The only light meters I have available to me are based on 180 degree angles, and I realize that it's only about 1/6 of a stop difference, but on a smaller format projected on a big screen, will that be a problem?
A 1/6 stop difference is negligible for any camera original film. Color negative films are even more "forgiving" because of their latitude. You can always "tweek" your T-Stop to give a bit more exposure if your shutter is less than 180-degrees. The Kodak incident light exposure tables assume a 170-degree shutter (1/50 second exposure time):
Posted 01 September 2005 - 03:01 PM
Or, do what John suggests, and don't worry about it. A slight "overexposure" will give you a slightly denser negative with less grain. I've had telecine guys tell me 2/3 over works well for them.