这支全新推出的 Canon EF50mm f/1.2L USM,加上原有的 EF 50mm f/1.4 USM 及 EF50mm f/1.8,令 Canon 标准镜头家族非常完备。不过,在同一焦距上推出多款产品,也不免让大家产生些许疑问。50mm f/1.8是平价标准镜,EF 50mm f/1.4USM 自然贵一点,虽然在最大光圈上的相差只有2/3级,但两者的用料亦完全不同,EF 50mm The new Canon EF50mm f / 1.2L USM, combined with the original EF 50mm f / 1.4 USM and EF50mm f / 1.8, makes the Canon standard lens family a complete companion. However, in the same focus on the introduction of a variety of products, but also inevitably let you have some questions. 50mm f / 1.8 is a standard mirror, EF 50mm f / 1.4USM naturally a little expensive, although the difference in the maximum aperture only 2/3 level, but the two are completely different materials, EF 50mm