Glare in photography occurs when a bright light source, such as the sun, creates a reflection on a shiny surface, resulting in a loss of detail and contrast. To avoid glare, photographers can use various techniques, such as adjusting camera settings, using a lens hood, or polarizing filters.
Avoiding glare is important because it can ruin an otherwise good photo. Glare can make it difficult to see details in the photo, and it can also make the photo look washed out or overexposed. In some cases, glare can even make it impossible to see the subject of the photo.