UV Filters page 9

All about UV filters

What is a UV filter?

A UV filter is a ring with tempered glass inside, which inhibits the effect of UV rays. In the past, this filter was often applied to analogue cameras, since these models were very sensitive to this radiation. With the advent of digital cameras, sensors have been modified in such a way that they are hardly sensitive to this radiation any more. At high altitude, however, this filter does offer protection against the blue haze that accompanies the influence of UV radiation. However, at sea level, the influence of this filter is very limited. In the modern era, the filters of Hoya, Rodenstock and Leica, among others, are mainly used to protect the lens from falls or bumps.

Lens protection

An advantage of a good UV filter is that it does not create unwanted discolouration or changes in contrast with the optical glass, but also provides effective protection for the lens. If you bump into a sharp object with the front of your camera once, you damage the filter, but your lens remains intact. This saves a repair on the lens and allows you to easily replace the filter, and for a relatively small amount of money. In addition to protection against damage to the lens, the filter also ensures no dust and dirt enters the lens. The protective effect of a UV filter is therefore an added value in digital photography.

Inspiration and tips

Looking for even more inspiration and tips on photography with a UV filter? Check out these pages:

• Top 10: UV filters