The Tokina difference comes from special material selection and assembly technology with micron-unit quality control. This ensures optimum consistency while maintaining top quality for each and every lens. That's why both professionals and knowledgeable amateurs rely on Tokina ...The Tokina difference comes from special material selection and assembly technology with micron-unit quality control.
This ensures optimum consistency while maintaining top quality for each and every lens. That's why both professionals and knowledgeable amateurs rely on Tokina lenses. The AT-X 235 lens uses the latest in lens development technology, using 2 (the front and rear) molded, multicoated aspherical elements which are created through collaboration with Hoya Corporation, the world largest manufacturer of optical glass.
This lens also features the exclusive "Focus Clutch Mechanism". The lens elements are made of higher quality HLD (high refraction, low dispersion) glass for higher resolution and contrast.