Question

short note on UV filter​

Answer 1

Explanation:

A UV filter is a glass filter that attaches to the front of your camera lens and blocks ultraviolet rays. They used to be necessary for film photography, but now most photographers use them to protect their lenses.

A UV filter blocks UV light as it enters the lens. Think of it as sunscreen for your camera. Some old photography films were very sensitive to UV light so, if you didn’t use a UV filter, you would end up with a blue haze in your photos. This was especially common if you were shooting somewhere there was a lot of UV light, like on a really sunny day or at high altitude