Tungsten for Moonlight?

Indyreel

Well-known member
I have a 650 Watt tungsten light that I want to use to simulate moonlight.

My plan is to by a 3/4 or Full CTB Gel to do this. Am I thinking in the right direction, or do I need to buy a different type of gel to get a "slight blue tint" moonlight effect?
 
Well you can easily simulate the relevant color. If there are no other light sources (not even the real moon), then you dont need to gel at all if you dont want to. WB to the tungsten source and your light will appear as white. Personally, Im not a big fan of "Blue" moonlight. To me white seems more accurate, but it's subjective. And in the case where your moonlight source is only a 650w, youll need every footcandle of light you can get so gelling is only going to set you back.

What other lights will you be using for the shot?
 
Really a china ball with some 85w CFL's in them outside the window would be better and balance to 3200k. Less light loss. I assume this is on a budget.
 
Just remember that a full CTB gel cuts two stops of light. That turns your 650 into something closer to a 150....Gonna need a different approach or bigger lights. How big of a space are you lighting? Outdoors or indoors?
 
70' long, and I want to have "moonlight" shining through the five big factory windows, casting window patterns on the floor.

Noel has a good technique, but I wonder if it will make everything else in the scene look off color. (i.e. the security guard who walks the building with a flashlight)
 
70' long, and I want to have "moonlight" shining through the five big factory windows, casting window patterns on the floor.

Noel has a good technique, but I wonder if it will make everything else in the scene look off color. (i.e. the security guard who walks the building with a flashlight)


Anyone?
 
an idea

an idea

What my gaffer did once was lay the windows with party gel, you can find at any party store, a very thin colored layer, say blue to get your moonlight effect, cover the windows, then shoot straight flood lamps at them from the outside, maybe 500-100w, they are like $10-$20 for a 500-1000 watt flood lamp with stands at home depot or hardware store,

this is cheap and effective, especially because you have so many windows you need this effect for.
 
If your not shooting it at night, the cheapest is to use the actual sun for this light gag. You of course will have limited time to shoot your sequences.
If you must shoot it at night, or to have longer shooting times , larger HMI 4,6 ,12 or even 18k's , placed on a crane outside the windows would be needed.
 
70' long, and I want to have "moonlight" shining through the five big factory windows, casting window patterns on the floor.

Noel has a good technique, but I wonder if it will make everything else in the scene look off color. (i.e. the security guard who walks the building with a flashlight)

I feel like that's a massive space to light with one 650. I will say that you don't need 3/4 or full blue on the light, you only need to make it a little blue.

Clint and filmat11 both have good ideas to consider.

Is a 650 the biggest light you have access to?
 
> 70' long, and I want to have "moonlight" shining through the five big factory windows,
> casting window patterns on the floor.


Ugh. that's a lot to expect from a 650 (unless you are beta testing the 1d!). At the least, I'd use a big light like a 5k, or perhaps a string of 1ks. You could do a string of rock and roll par cans, but then you will also need stands to get them up high.

An alternate way of going about it would be to use no gel on the 650, but rather gel the interior tungstens with CTO and white balance for those, making the outside 650 appear to go blue.
 
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