* Lighting Information

Understanding Basic Electric Safety:

The Ohms Law
(or….How not to blow fuses and burn things down)

100 watts = 1 amp (ie. Household circuit [not outlet]) = 15 amps)
If you can find out what the schematics of the place you are shooting in this will help.

The amp on a light is found on the back.

250 watt = 2.5 amps
650 watt = 6.5 amps
500 watt = 5 amps
Total = 14 amps
If this were the package you were working with this would be the maximum wattage you could use on one circuit.

If you are in a house….use extension cords to split up the load (to avoid blowing fuses run them off separate circuits).

Lighting Kits & How to Use Them:

Low Pro – can focus with spot or flood by opening barn doors (it creates a diffused light so the light is softer). It has the ability to focus but not as much as a Freznel

Zip Light – traditional back light (very hot lights…they will melt gels)
In a pinch you can use it as a flood….avoid if possible.

Freznel Light – refers to the fact it has a lens in front of bulb. It is used for spot lighting….focus it on something. It is a bright light.

Soft light – on a cloudy day when you can barely see a shadow (diffused light – Low Pro) Can use this to make a hard light situation soft. By adding a diffusion filter you can make it softer and diffuse a hard light situation)

Hard light – hard shadows – bright sunny day you can see your shadow (ie Zip light)

3 point lighting – Key, Fill and Back

All of our lights in our kits are tungsten lights.

Key – set on a 45 degree angel from the camera (usually a hard light– main light source (Low pro). Using the barn doors start with them closed. Set them at a lower angle than the back light (about 1 foot in height above the top of the subject)

Fill - set on a 45 degree angel from the camera (fills in the shadows that the key doesn’t– less intense – soft light) (Zip light) Since the Zip light is a hard light you can use a frame with a diffusion gel to convert it to a soft light. Set them at a lower angle than the back light (about 1 foot in height above the top of the subject)

Back – set on a 45 degree angel from the subject – defines subject from background. Low Pro. Typically set at a higher angle shooting down on the subject. Spot the light with the barn doors and use them to focus on the subject without getting a lens flare in the camera

Once you have your lights in place, look at where you have shadows and then begin to work with each light to determine how to eliminate them.

For our studio situation with 2 hosts and large windows start by blacking out the windows. Use the Key for Host 1 as the Fill for Host 2….and the Key for Host 2 as the Fill for Host 1. Each host gets their own Back light.

Diffusion gels – softens the look
Full Blue gels – (CTB = colour temperature blue) Use these (they are the darkest blue) to convert the tungsten lights to daylight
ND Filter gels – light blue diffusion (like sunglasses for lights)
CP 47’s = Cloths Pins

General Rules of Set Safety:

Never have the legs completely flat…always use a sandbag on at least one light….outside have someone physically hold the stand so it doesn’t blow over.

Always yell “sparking” before you turn on a light so everyone looks away and doesn’t burn their eyes

Use cable mats where ever people walk. Use extension cords and keep your cables unwound never have them tangled up.
If you don’t have cable mats or where you can’t use them always use appropriate tape. (Greg now has a variety of tapes for use on set).

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