The Hoya 55 mm Variocross Special Effect Glass filter consists of two colorless glass plates with etched parallel lines on each surface set in independent rotating frames. By rotating these frames, the star effect can be varied.
This filter is especially suited for fantasy and surreal scenes. The patterns produced from this filter lend themselves well to "Departure from Reality" images.
Note:
Inasmuch as this is a thick filter, it is not recommended for wide angle lenses
Special effect filter for specific "dream" images
As one of the premier filter manufacturers, Hoya filters continue to made from quality glass assuring the photographer clear, sharp and accurate images
Hoya filters consistently provide even color all the way through the filter; All surfaces are ground and polished to specific thickness and tolerances
Even non-multi-coated Hoya filters have one layer of anti-reflective coating applied to each surface of the glass; Hoya's single layer coating decreases light reflection off the surface from approx. 9% to an average of 4-5%