Kase Lenses

Kase is a Chinese optical manufacturer founded in 2011, specializing in high-performance camera filters and optical accessories. With independent research, development, and manufacturing facilities based in China, Kase has built a reputation for professional-grade filter systems used by photographers and videographers worldwide.

The brand's product lineup encompasses a comprehensive range of optical products including ND filters, circular polarizers, graduated filters, magnetic filter systems, and—more recently—autofocus camera lenses. Their filter systems, particularly the K-series modular design, are widely recognized for their optical clarity and build quality in aluminum alloy and Schott optical glass.

For photography and video users, Kase offers an accessible yet professional ecosystem: from compact filter holders compatible with most lens diameters to autofocus prime lenses like the 85mm f/1.4 and the innovative 150mm f/5.6 AF Reflex mirror lens—unique in its category for bringing autofocus to the classic catadioptric optical design.