I have one and use it only for rainbow shots. With today’s editing tools and your good skills with the camera, there is very little need for that filter. And, by the way, if you have one and your partner that day does not…and a beautiful rainbow shows up…for goodness sakes, share the filter. I failed to do so on a shoot with CJ and he only mentions it every single time we see a rainbow. Lesson learned.
I do have a clear UV filter on any lens of mine that will accommodate such a filter…but only to protect the expensive glass of the lens. That filter has saved my bacon on several occasions…worth the small investment.
Other filters…quite a good tool for your photography and I will cover them in a future article.
Aloha.