This new lens is definitely OUT OF OUR MINDS! The Laowa OOOM 25-100mm T2.9 is the ideal all-in-one zoom lens for the cinematographers who are looking to stop renting cine zoom lenses for jobs. It's robust build quality and versatility put it in a class well above its price tag. The OOOM features a comprehensive 4X zoom range, a constant T2.9 aperture throughout the zoom range and par-focal design. It also has a close-to-zero focus breathing. The OOOM lens includes a default PL mount with interchangeable standard Canon EF and Sony E mount, all packed neatly in a custom foamed hard case. The optional bundle includes the tailored 1.33x Anamorphic Rear Adapter and 1.4x Full Frame Expander.