Using Mirrors On Location
by
Tom Collins

Introduction

When working outdoors the primary light source is the sun. Adding secondary light sources can add contrast, three dimensionality, texture and roundness. Many photographers choose to use portable strobes as secondary light sources. Others use reflectors as secondary light sources. Part of the difficulty in working with the sun is that it is not always positioned exactly where you would like. You can't change the position of the sun, but you can redirect it and modify its quality. A standard part of my location lighting kit is acrylic mirrors. Mirrors are highly efficient reflectors suited to redirecting sun light.

The Illustration

The photograph of model, Minda McQuiston, was shot at 4:00 PM with the sun directy over the photographer's shoulder. The available light was two dimensional and flat. A 24 x 30 inch mirror was added from slightly behind Minda and just out of picture area. The reflected light from the mirror provided additional light for her hair and highlights down the length of her body. The additional highlights compliment the graphic design of the setting and give the image an "electric" feeling.

Modifying Light Reflected From A Mirror

You can modify the harsh, specular light reflecting from a mirror much as you can modify the light from a strobe. Directing light from a mirror through a diffusion scrim such as a Lightform panel dramatically changes the light quality.

Remember:

Harsh light source are small, uninterrupted sources.
and
Diffused light source are large, interrupted sources.

Tips For Using Mirrors On Location

Use acrylic mirrors, not glass. Acrylic mirrors don't break. Personally, I wouldn't risk the seven years of bad luck on a glass mirror.
Acrylic mirrors can be bent and flexed to "focus" the light.
Models find the mirrors handy when adjusting their hair and make-up.
Try different sizes and shapes such as 8 x 10, 16 x 20, 24 x 30, and 5 inch round.
Use a good lens shade when bouncing light from the mirror towards the lens.

Equipment:
Mamiya RZ67
180mm lens
77mm Polarizing filter
Minolta Flash Meter IV
Davis & Sanford Airlift Tripod