Posted 23 January 2008 - 03:53 PM
Posted 23 January 2008 - 04:02 PM
Posted 23 January 2008 - 04:09 PM
Posted 23 January 2008 - 04:24 PM
Posted 23 January 2008 - 04:48 PM
Posted 23 January 2008 - 05:06 PM
Maybe I miss the point of a light meter. If you aren't using it to help you properly expose your image, what are you using it for? I thought the point was to know what f-stop to park on.
I think Valerio is saying that it's useful to know the RATIO of brightness within a scene. So your subjects face can be measured as 1 stop brighter than the tone on the wall behind their head. No matter how you then expose that shot, you'll always know that the face will be brighter than the wall behind by the same amount.
And so, yes it's useful to be able to MEASURE light, then interpret the readings and infer an exposure setting from that. Even on film, rarely would i actually set the exposure on the lens to what the meter says. It's usually not that literal because you are always evaluating what you're shooting, how reflective the subject is, and how you actually want it to look.
For example, If I was shooting day for night, the reading from a meter is only going to give me an exposure for getting it right as a normally exposed daylight level. I have to then decide how much to underexpose it to get a good day for night.
Make sense ?
Posted 23 January 2008 - 05:38 PM
I wrote a bit in a hurry so i apologize for the simplistic answer.
I also implied that if your meter doesn't read in FC you can't balance your lighting which is wrong. With FC you have an absolute value independent of your meter settings (ASA, FPS, Shutter angle...). Very useful IMHO.
Posted 23 January 2008 - 06:20 PM
I frequently use the incident light meter for my work on DVcam format specially indoors where I wanted to maintain the specific lighting ratio which I found very helpful.
I use to set the meter in 400ASA in 3200 degree kelvin, the camera being DSR390 for the reference and set the lighting ratio accordingly and put the aperture cross checking with the auto exposure mode.
With best regards,
Posted 23 January 2008 - 08:24 PM
Plus it puts me back on a scale that I understand. I know what 2 stops under vs. 1.5 stops under looks like, but I couldn't tell you the difference between 20 and 30 IRE before it. I think in stops, so it helps me to say "let's get it one over" rather than "I need 75 IRE on that back wall".