mostly shoot with spherical lenses, so thought this might be fun to get those anamorphic style flares from hard light sources. My first impression upon opening are really good. The leather-like pouch feels really nice and has a very useful pull tab that lifts the filter up out of the pouch so you can grab it without getting fingerprints on the faces. I wish more filter pouches used a similar setup. The 4x5.65" filter is a standard in the cinema industry and fits in perfectly with my filter kit and is properly sized for a standard matte box tray. I took a couple photos with my phone that demonstrate how the filter works. As you can see, harder light sources add that traditional blue anamorphic streak across the frame. I feel like blue is very sci-fi and works well in those scenarios, as well as some music videos. It's a bit intense for general use, in my opinion, but for a filter this cheap, it's worth having in my kit for those infrequent times I want to get this specific look. Usually streak filters like this are far more expensive, but this has similar results to those higher priced options. I've been quite happy with my assortment of K&F filters and feel like they punch way above their price point, competing with filters much more expensive. This is yet another perfect example of K&F doing it right and saving me a bunch of money. Would recommend.