When to use a polarizing filter

A polarizing filter is used to reduce reflections and glare from surfaces such as water or glass. Reflections are almost everywhere in nature: light bouncing off wet leaves or rocks surrounding waterfalls. In addition, a polarizing filter increases colour saturation, darken skies and reduces atmospheric haze.

The disadvantage of a polarizing filter is the loss of light that comes through your lens. I recommend a high quality circular polarizing filter to reduce the loss of light between 1 and 1.5 stop. You can compensate that loss by reducing the shutter speed, using a bigger aperture or increasing the ISO. Make sure that both your lens and polarizing filter are clean and free of dust.

These photos demonstrate what a polarizing filter can do when the light bounces off the surface of wet leaves. Note that I used a telephoto lens to isolate my subject and a short depth of field to blur the background.

Polarizing Filter

Not the greatest images but perfect to demonstrate what a polarizing filter does. It allows you to:

• Suppress glare from shiny surfaces such as water, windows, leaves, etc.,

• Manage reflections,

• Darken skies, and

• Protect your lens.

I love it when my models are as cooperative as this lovely frog.