Zhuhai CuFu optical technology Co., Ltd are specialized in photographic equipment in international and national trade. And registered NiSi brand in Japan.

Our factory have own 5000 square meters, we've got a lot of patented technologies. We have professional imported CNC machining equipment and personnel, more than 20 years high-end optical design expertise and advanced optical instrumentation can complete product development, design and production.

We are successful cooperation and develop digital camera wide angle lens, teleconveter lens with Japanese customer in 2003. It is use for all major brand of digital camera; Digital video in the market. No hidden corner design. We have OEM Production for the famous company in Taiwan Japan Germany etc.

We have developed the special ultra thin filter in 2007. And Unanimously approved by peers. All of filters are adopted air craft quality aluminum, processed by advanced numerical control machine, with fine sand blasting, anodic oxidation and dull finish inside the frame, every piece of Nisi filter actualizes reflection resistance very well. with fine knurling on its rim, the frame makes its lens exceptionally easy and comfortable to rotate. Automatic-locked ring clamping make that the lens is safe from damage during transport. This ultra thin filter frames to help avoid vignetting on super wide angle lenses. As well, screw thread in front of the frame makes it easy to install the lens cap and other accessories.