镜头的基础知识
解读佳能镜头型号
jingtoumingyouduozhongshuzihezimudengzucheng。suoyoudeshuzhihefuhaodouyougezidehanyi，mingbailezheixiehanyijiunengdagai✃lejiejingtoudetezheng。jingtoumingdazhifenwei4bufen：①jingtouleixing、②jiaoju、③zuidaguangquan、🍰④jingtoutexing。lingwaiqipailieshunxuyeyouguize，yibandejingtoudoushian①-④deshunxupailie，ruguobiaoshijingtoutexingdefuhaobijiaoduo，ruef 70-200mm f/2.8l is ii usmdejingtouming，zheixiefuhaojiuyicipailiezaizuihou。
benwangzhanbaohanyibufenguanggao/shichangtuiguangdengneirong，jingqingzhixi。
