How to Use Filters in Photography

Photo Filters

Photographic filters are the most important tool for a photographer beyond his camera and lens. Filters can be used to alter the look of a photograph instantly. The change can be subtle or drastic. And in some cases, the image would not be possible without the use of a filter. The following guides will help you learn how to better use these camera accessories.

Instructions

1. Understand that a photographic filter is something that allows different types of light to pass through it while blocking other types of light. The term filter has come to mean any kind of attachment that modifies the light in some kind of manner.

2. Know the different kinds of filter shapes. There are typically two different shapes of filters. It is either square that fits into a holder that attaches to the lens. Or it is round, with a metal frame that screws onto the camera’s lens. These range in size from 38 to 77 mm. The most popular sizes are 49 mm and 52 mm.

3. Understand the size of the filter needed. To determine the correct filter size, you can take your camera to a specialty supply store where staffers can fit your lens with the correct size. It makes sense to not have to buy a lens in multiple sizes. So, if you have more than one lens to fit, buy the largest size filter and then buy sizing rings to fit your other lenses.

4. Know the types of filters available. The most common type of camera filter is the protective lens: UV or 1A lens. Neutral density filters are graduated in values of gray tones. Polarizing filters are adjustable to control color density and reflections. Close up filters are used to do just that, focus closer up. Filters used for chromatic correction in black and white photography, color photography and correcting make a difference in lighting.

5. Know when to use filters. Filters are typically used to solve problems. You shouldn’t use filters unless you have a need or problem to resolve. The reason being, filters add more possible problems. If the filter isn’t clean or it is scratched, it will transfer to the image. While filters are used to solve problems, they can also add them buy adding another surface that can cause blurring. Filters are also difficult to focus through and in some cases need to be removed to focus, and then put back in place for exposure.

6. Avoid misconceptions. With the advent of technology and the correction that can take place using photographic software, you might think there isn’t a need for camera filters. But in most situations, the treatment gained from the use of the filters is better than any adjustment done in the computer.