How to Use Filters With Digital Cameras

The use of glass or gelatin filters may not seem as necessary in digital photography as with film, but there are still benefits. Using filters can correct lighting problems that would take a long time in your computer editing program. You just need to know which filters work best with digital cameras. Read on to learn more.

Difficulty: Moderately Challenging

Instructions

The Filter for Your Camera

1. Know what filter-mounting options you have on your camera. Some consumer-grade digital cameras lack mounting threads for accessories like filters. Others may require a lens tube.

2. Find out what size lens tube is best if you need one. Remember that longer tubes can cause a dark circle around the edge of photos (known as vignetting). The shortest tube you can find may be best, especially if you're using conversion lenses.

3. Determine the right size filter for your camera. A filter too small can cause vignetting. A filter too large will be more expensive and can cause flare, flash shadowing and viewfinder obstruction.

4. Get the best lens cap to protect the lens and filter. You may also need step-up rings if using shades and converter lenses.

Types of Filters

5. Avoid UV filters. Ultraviolet light doesn't affect digital images as much as regular film. The only real benefit may be blocking "purple fringing," when a band of bright purple surrounds the edges of dark objects against a bright background.

6. Use polarizing filters, especially if you shoot outdoors a lot. These are best for removing glare and other unwanted reflections as well as darkening the sky and highlighting clouds for effect.

7. Use Graduated Neutral Density filters if you are shooting against a very bright sky. These will help balance the sun's glare against your foreground, much like when you block the sunshine with your arm.

Tips & Warnings

• Ask for an expert at a camera shop. You should be able to find someone who can determine the best filters and accessories for your digital camera.