Heliopan 77mm Orange #22 Filter
The orange filter absorbs blue almost completely as well as some green This contrast filter offers special enhancement of the cloud effect and considerably decreases atmospheric haze. It is especially useful at infinity with telephoto lenses. For portrait and figure photography it smoothes uneven skin tones, and helps to hide skin blemishes. Best portrait results are achieved with green lipstick. The filter factor is approximately 4x.