articles/Lighting/dressonfire-page2
by Lindsay Adler Published 01/07/2016
Step 3:
Next, you need to add a second light pointed at the lower half of the subject's body. For this light you will turn OFF the strobe capabilities and only use the modelling light. Here I have used a zoom reflector with barn doors and a red gel for creative effects. This light will be used to illuminate the dress, and I use the barn doors to make sure this light does not hit the subject's face. This is one of the benefits of placing gels on barn doors - you can control the spill of light more precisely.
Now that the strobe capabilities are turned off and the ambient light in the room is eliminated, be sure the modelling light of this second light is turned up to full power.
If you take a photograph while shooting at a 'normal' studio shutter speed (around 1/200 sec) you will see almost no light added to the bottom of the dress. This is because your exposure does not let in enough ambient light to record the colour of the dress. In the next step, we will change this.
Step 4:
In order to achieve see colour/detail on the bottom of the dress, you will need to use a long shutter speed (aka 'dragging the shutter') to allow the background light to register in your exposure.
By using a longer shutter speed, in this case 1/4sec or 1/8sec, you leave the shutter open long enough to pick up the light from the modelling light.
With the longer exposure in this image you can see the red illumination registering on the bottom of the dress.
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