Have you guys use the next formula?
E = ILLUMINATION IN FOOT CANDLES.
f= T-stop or f stop
t = exposure time in seconds.
S = Film speed.
say an example would be like...
How many foot candles are required to expose an ASA, 100 FILM, for 1/50 at f 2.0?
the result would be 50 foot candles.
Would this formula help on anything? mean, that says how many foot candles we need on asa 100... to expose it... but would you recommend using it? I mean that way you could use the data sheets of the companyes like mole richardson to get say 50 foot candles, depends on the sequence to make if there are full shots or maybe just MC, CU, etc...
Would you relly on a equation like this? I mean its on the ASC manual.