The B&W 62 mm Multi-Coated (MC) UV-415 Extra Wide UV-Blocking Glass Filter is nearly colorless and blocks UV radiation up to the limit of visible light.
Multicoated to minimize reflection at the filter surfaces which reduces flare and ghosting.
B&W Extra-Wide's are special filters for wide-angle lenses. In order to prevent vignetting, the accessory thread on the front is larger
Prevents the fluorescence that may occur in the cement between lens elements
Because of the usually rather colorful fluorescent subjects, the delicate yellow cast in color photographs is negligible