Removes Reflections And Increases Color Saturation Without Affecting The Overall Color BalanceBrass Is Used To Make Most Of The Rings For The Filters And Adapter Rings. Aluminum Is Used For The Rigid Lens Hoods Like The telephoto Metal Lens Shades. For The Rubber Lens Hoods A Special Rubber Mixture Is UsedFilter Factor: Between 2.3 And 2.8 (Approx. 1.3 Stops)For brilliant color reproduction, best contrast and sharpness Heliopan offers the highest quality optical glass from the German Schott Group.High quality hard coating on each filter side to reduce stray light, to maintain high contrast and avoid flareSlim mount does not vignette with 21mm lenses.Minimal reflections because of matte black anodized brass filter rims which will not bind when threaded in combination with other metals.Limited Lifetime Warranty
The Heliopan 77mm Slim Circular Polarizer SH-PMC Filter helps to reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface. This results in a noticeable increase in the saturation of skies and foliage, as well as clearer imagery when photographing in hazy conditions. A circular polarizer differs from a linear polarizer in that it supports full use of a camera's autofocus and auto exposure functions.
Brand: Heliopan, Model: 707780, Color: Black, Size: 77mm