| Photographers often use polarizing filters to | | | | the pitfalls can be avoided with a bit of |
| improve the appearance of the images they | | | | knowledge. |
| capture. With digital cameras many filters are no | | | | The first thing one needs to know about a |
| longer necessary and do not always work | | | | polarizing filter is that there are 2 different types. |
| correctly. There is one filter, however, that is the | | | | One is the linear polarizing filter the other is the |
| most often used filter, and it is considered a | | | | circular polarizing filter. A circular or a linear filter |
| necessity to a landscape photographer. Whether | | | | will do exactly the same thing for your images; |
| using a digital or a film camera a polarizing filter will | | | | enhance them. To compare them, the circular |
| increase color and eliminate reflections in your | | | | filter is more expensive and the linear filter may |
| images. | | | | not be the best choice for most cameras that |
| To unlock the secret of the polarizing filter, you | | | | use auto focus. |
| must use the filter correctly. | | | | A linear filter will often ruin the performance of |
| To use your filter, find the correct size filter to fit | | | | auto focus; the camera is unable to transform the |
| the lens you are currently using. (a 55mm | | | | information correctly coming from the filter. A |
| polarizer for a 55mm lens etc). Secondly, screw | | | | circular polarizing filter has an added layer which |
| the filter onto the front end of the lens (nearest | | | | scrambles the filtered light coming from the |
| the subject). After the filter is snugly attached to | | | | polarizer and the camera is able to read the |
| the lens, rotate the filter. Look through the | | | | information more clearly. |
| viewfinder as you rotate the filter and you will | | | | The extra layer in the circular filter is the main |
| see the results immediately. Your landscape | | | | reason the circular is more expensive. But as you |
| images will take on a whole new look; skies will | | | | can see it is often well worth the extra expense. |
| become more deep blue, clouds more brilliant and | | | | Also, be sure when you purchase a filter that |
| grass greener. If you stand at a 90-degree angle | | | | there is no color cast in the filter. Some filters |
| to the sun you will get the maximum effect from | | | | come with an odd cast, green or yellowish color; |
| your filter. Do not stand with the sun in front of | | | | make sure your filter has only a neutral grey cast. |
| you or behind you to take the shot. | | | | Another problem encountered with polarizing filters |
| A polarizing filter, used properly, on an overcast | | | | is found when using wide-angle lenses (28mm or |
| day will saturate the colors of the wet leaves | | | | wider). A wide-angle lens may see the rim of |
| giving life to the image. Of course, you must be | | | | your filter, causing a darkening at the edges of |
| very careful on a low light day as a filter can | | | | the image. Also, the sky can become unevenly |
| make your images too dark. A polarizer will cut | | | | polarized as polarization varies with the angle of |
| the amount of light reaching your film or sensor. | | | | the sun and a wide-angle lens covers a wider area |
| To counteract the decreased light reaching the | | | | of the sky. |
| sensor or film, open the aperture or slow your | | | | Even with a few pitfalls, the results achieved with |
| shutter speed to compensate. | | | | a circular polarizing filter are definitely well worth |
| Even though using a polarizing filter has many | | | | the price of the filter. Using a polarizing filter will |
| benefits, which far outweigh the pitfalls, there are | | | | take your images to a whole new level. |
| several pitfalls of using a polarizing filter. Most of | | | | |