As part of the Cinema Line of Pig Iron premium filters, the split focus filter makes special focus effects easy. Suitable for both videography and photo shooting. Have you ever seen one of those amazing scenes in a movie where the camera somehow manages to focus on a person or object near the camera and something in the background at the same time? How is this even possible? Introducing the Pig Iron split focus filter range. Just attach the filter to your lens like any other filter and youre ready to shoot. The filters rotating element makes it easy to position the sharpness level exactly where you need it. Available in all standard filter thread sizes, the Pig Iron Split Focus Filters can revolutionize your photography and movement.