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Venus Optics (Anhui ChangGeng Optics Technology Co., Ltd.) is a Chinese manufacturer of photographic lenses, specialized in the design of innovative macro, wide angle, shift and f/0.95 lenses. Headquarters and production are in Hefei, while sales and marketing offices are located in Hong Kong and the USA. They are currently marketing the lenses using the brand Laowa.

Venus Optics was founded in 2013. Founder, managing director and chief developer is Dayong Li who graduated in opto-electronic engineering from the Beijing Institute of Technology. The company develops and produces innovative photographic lenses under the brand name Laowa ('old frog').

Laowa's optics designer, Dayong Li, is believed to be the optics designer of Tamron, the reputable camera lens manufacturer from Japan. He was heavily involved in numerous Tamron's project development including the popular 24-70mm f/2.8 and 70-200mm f/2.8.