Every shooter needs some filtering. These three kits are a great start to test with and figure out what best works for you.
Rosco Diffusion Filter Kit (20×24”) – $ 84.22 at B&H
Rosco Color Correction Filter (20×24”) – $ 81.94 at B&H
Rosco Color Effects Filter Kit (20×24”) – $ 97.65 at B&H
And if you need a frame here is one from Matthews: $ 58.49 at B&H