With about twice the correcting effect of the KB1.5 (82A) filter, the 105 mm B&W KB3 Cooling Color Conversion Multi-Coated (MC) Slim Glass filter removes the orange-red color cast that appears on photographs made on tungsten reversal film with artificial lights using 100-200 Watt bulbs, or from aged photoflood lamps. Therefore, this filter is ideal for neutral color reproduction with appropriate illumination.
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.