Question

佳能定焦头有哪些？

Answer 1

好多款！分广角定焦头，标准定焦头，远射定焦头，超远射定焦头、微距头、移轴镜头几大类。
广角头：
EF 14mm f/2.8L II USM，EF 15mm f/2.8鱼眼，EF 20mm f/2.8 USM，EF 24mm f/1.4L USM，EF 24mm f/2.8，EF 28mm f/1.8 USM ，EF 28mm f/2.8，EF 35mm f/1.4L USM，EF 35mm f/2
标准头：
EF 50mm f/1.2L USM，EF 50mm f/1.4 USM，EF 50mm f/1.8 II，EF 85mm f/1.2L II USM，EF 85mm f/1.8 USM，EF 100mm f/2 USM
远射头：
EF 135mm f/2L USM，EF 135mm f/2.8 柔焦，EF 200mm f/2L IS USM，EF 200mm f/2.8L II USM，EF 300mm f/2.8L IS USM，EF 300mm f/4L IS USM
超远射头：
EF 400mm f/2.8L IS USM，EF 400mm f/5.6L USM，EF 400mm f/4 DO IS USM
EF 500mm f/4L IS USM，EF 600mm f/4L IS USM，EF 800mm f/5.6L IS USM
微距头：
EF 50mm f/2，EF-S 60mm f/2.8 USM，MP-E 65mm f/2.8 1-5X，
EF 100mm f/2.8 USM，EF 180mm f/3.5L USM
移轴镜头：
TS-E 17mm f/4L，TS-E 24mm f/3.5L II，TS-E 45mm f/2.8，TS-E 90mm f/2.8

您去蜂鸟网或者色影无忌看看这些头的评测吧！

Answer 2

EF 15mm f/2.8鱼眼
EF 14mm f/2.8L II USM
EF 20mm f/2.8 USM
EF 24mm f/1.4L USM
EF 24mm f/2.8
EF 28mm f/1.8 USM
EF 28mm f/2.8
EF 35mm f/1.4L USM
EF 35mm f/2
EF 50mm f/1.2L USM
EF 50mm f/1.4 USM
EF 50mm f/1.8 II
EF 85mm f/1.2L II USM
EF 85mm f/1.8 USM
EF 100mm f/2 USM
EF 135mm f/2L USM
EF 135mm f/2.8 柔焦
EF 200mm f/2L IS USM
EF 200mm f/2.8L II USM
EF 300mm f/2.8L IS USM
EF 300mm f/4L IS USM
EF 400mm f/2.8L IS USM
EF 400mm f/5.6L USM
EF 400mm f/4 DO IS USM
EF 500mm f/4L IS USM
EF 600mm f/4L IS USM
EF 800mm f/5.6L IS USM
EF 50mm f/2.5 小型微距
EF-S 60mm f/2.8 USM 微距
EF 100mm f/2.8L II USM 微距
EF 180mm f/3.5L USM 微距