Filter CP Freewell Sherpa til iPhone 13Pro/Max, 14Pro/Max, 15Pro/MaxCPL Freewell Sherpa filter for iPhone 13Pro Max, 14Pro Max, 15Pro Max Frewell filter designed specifically for Sharp cases. It will work great with the iPhone 13Pro Max, 14Pro Max, 15Pro Max. CPL (Circular Polarizing Filter) optical filters are characterized by the fact that they reduce glare, improve color saturation and contrast, and increase depth of field. They are particularly useful in landscape photography, where glare on water, leaves, or