Macro Lens Filter

Macro Lens Filter
What lens filter would be best for Olympus 50mm f2?

UV protection, circular, or ND. The goal will be used for macro and portraits thanks

I keep a skylight or UV Haze / filter in all the goals I have, but one *. Only come when I use the polarizer. * The only objective I have to face the world is my bare 16 mm full-frame 180 degree fisheye.

58mm Macro Close-Up +10 Lens Filter for Digital Camera from Dinodirect.com