The Tiffen 6.6 x 6.6" 4 Coral Solid Color Filter adds a warm, pale orange coloration across the entire image and helps to subdue overly bluish casts. The solid color design makes this filter well-suited to pairing with other filters for further control over the appearance of imagery. The 4 color density provides less coral coloration than the 5 density, but more than the 3 density filter.
This filter is made using ColorCore technology, a process that involves laminating the filter substrate between 2 pieces of optical glass and grinding flat to a tolerance of 1/10,000th of an inch. It measures 6.6 x 6.6" / 167.6 x 167.6mm.