光圈，50 mm (2 in)，4180 或 41... 郑州市平山贸易有限公司

p1Src=//y1.yzimgs.com/uploads/511249/202647-165825798.png?watermark/2/text/6YOR5bee5biC5bmz5bGx6LS45piT5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/750/fill/I0E3QTlBOA==/gravity/SouthEast"