I first heard about Breakthrough Photography through their Kickstarter campaign. They are a group of photographers who have decided to create their own UV, Circular Polarizer and Neutral Density filters. What I like about these filters is each filter is double-threaded which ensures that the lens cap will stay on. There is Multi-Resistant and Nano coatings. They are also very thin which will help to eliminate vignetting. I’m looking forward to taking images with some of these filters.