The Zeiss 52mm Carl Zeiss T* UV Filter is a filter with an
anti-reflective coating. It enables you to produce brilliant pictures,
even in unfavorable lighting conditions. The very thin, transparent
coating is present on both surfaces of the filters glass plate.
To create the coating, special substances are vaporized one by one in a
vacuum, then deposited on the glass surface with precisely controlled
thicknesses, in order to achieve the desired reduction of reflecti