Boxin Optical Instrument Company: Provides lab-quality optical products such as lenses, microscopes and mirrors.
Brightscreen: Maker of camera focusing screens, and magnifiers for critical focusing.
Camera Ace India: Export camera and photographic accessories such as lens, filter and ring adapters.
Changchun Daheng Optical Instrument Factory: Manufacturer of prism, wedge, mirrors, lens, cylindrical lens with optical glass and optical crystal. China.
Changchun Deheng Optics: Specializes in processing optical components such as prism, mirror, wedge prism, windows, lens, plano-cylindrical lens, and diffraction grating. China.
Changchun XinXin Optical Electron Technology: Provides optical products such as lenses, prism and mirrors. China.
Schneider Optics: Manufacturer of lenses and filters for still photography, motion picture, and video.
SmARTlens: Manufacturer of lenses applicable to cameras, computers, copiers, scanners, printers, and other devices.
Tamron: Lenses and equipment manufacturer
THK Photo Products, Inc.: Exclusive distributors of Tokina camera lenses, Hoya filters, and Kenko lens converters and video camera lenses in the US.