Due to its light pink color, the B&W 67 mm KR 1.5 Slim Multi-Coated (MC) Skylight filter reduces the blue cast of daylight and produces a pleasing, warmer picture tone. Also known as a Skylight (1A) filter, it is a wise initial investment. It can help protect your lens from dust, moisture and scratches, which can lead to costly repairs.
Multicoated to minimize reflection at the filter surfaces which reduces flare and ghosting.
B&W slim filters are for wide-angle lenses and are 3mm thick. They do not have a front thread.