Total brightness tungsten vs daylight

[David Edward Keen]

Newbie's question here.

 

How much does the total output in terms of i guess footcandles/lux decrease if i put a tungsten (3200K) diffusion over the 5600K LED light? It's one of those tungsten diffusion plastic plates goes right over the light.

 

I know that putting a CTB in front of my 3200 K greatly reduces the amount of light goin out.

 

I'm videoing three guys interacting on a street and I'm concerned about keeping them all inside the DOF. If I have enough light I can do a higher F stop but i probably don't, even with the street light over us.

 

 

 

 

 

 

[David Mullen ASC]

It's the same as an 85B (orange) or 80A (blue) camera correction filter -- 2/3-stop for full orange (actually closer a 3/4-stop) and 2-stops for full blue.

 

A stop is equal to half or double the light, so you will cut the footcandle output by almost in half with the Full CTO correction.