In response to the growing demand for large-format cameras, the lenses can cover Vista Vision (46.5mm) sensors.Real World Authentic Color Reproduction.Catta Zoom lenses produce real-world colors on a compact but comprehensive sensor by embracing the design philosophy of natural, original, and authentic. This allows you to take shots that are as realistic as possible, and it makes color-correcting your images easier in post-production. In addition, Catta lenses promise to produce vivid and natural skin tones.Parfocal Design.With a parfocal optical design, the Dzofilm Catta Zoom lenses feature reduced focus breathing. As a result, unlike still photography lenses, the focus remains constant when the focal length changes, allowing for zoom racking without losing focus. To set up a shot, you can zoom in as far as you like and set a focus. The image will remain sharp as you zoom out to your desired framing.Geared Rings, T Stops.Each cinema lens has an aperture range of T2.9 to T22.