There is no definitive cine lens company which provides the “best” quality, as this can be subjective and depend on specific needs. However, two notable companies producing high-quality cine lenses are Laowa and Zeiss.
Laowa’s 6mm T2.1 Zero-D Cine lens has been listed among the best cine lenses available. It’s designed with the needs of filmmakers in mind, offering advantages like larger focus rotation angles, stepless and clickless aperture rings, and accurate light transmission through the use of T-stops.
Zeiss is another notable company, with their Compact Prime CP.3 19mm T/2.9 lens earning high praise. This lens is known for its unique features like an inner focus lens system and parfocal capabilities, ensuring the focal point doesn’t shift when zooming.
Each company has its own strengths, and the “best” quality can depend on the type of shooting, the specific requirements of the filmmaker, and personal preference. It’s recommended to research and test out different lenses to find the one that best fits your needs.