fluorescent/tungsten lighting question

P

pedge

Member
Hi all,

I was hoping someone might be able to help me. I am shooting a video soon on the DVX100b in a large shed. The shed is lit by banks of fluorescent lights. What gel should be placed over tungsten lights to correct for fluorsescent light? Am i right in thinking it is either a green or pink coloured gel?

Any help would be appreciated.

Thanks,
Peter.
 
Yep, usually a plus green gel is used to correct tungsten to fluorescent. It depends on the fluorescents, though. Some are greener than others. You'll want to test before you shoot, if possible.
 
Peter,

There are lots of different kinds of fluorescents. Some are already close to tungsten, and some are close to daylight. There are even flos with color temperatures in-between around 4.1k. If the flos in the shed are close to daylight, your tungsten lights won't match at all.

Take the camera in the shed with just the flos on. Try the WB presets and see if the lights look white under either 3.2k or 5.6k. You may have to stop down the iris or enable the ND's a bit so the lights don't overexpose and you can get an accurate look at them.

If the flos do match tungsten, then you may want a 1/8 magenta just to combat the normal "green spike" of cheap flos. If the flos match daylight, then you'll need a full CTO gel to get them to match tungsten.

Hey, you'd be surprised how inexpensive flo tubes are. You may be able to just replace the tubes with high-quality high CRI tubes that already match tungsten/daylight perfectly. Check into it.

Josh
 
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