Keywords: zhong yi zhongyi zy optics zyoptics mitakon 135 mm 135mm f/1,4 f14 shenyang optical electronics shenyangopticalelectronics ultrafast lens electronics Zhong Yi / ZY Optics / Mitakon Speedmaster 135 mm f/1,4 (Shenyang Optical Electronics) Explore Mistral-75's 262 photos on Flickr! |