镜头的技术介绍
STM步进马达
zuoweijingtouqudong，tongguojiandandejixiejiegoukehuodeqidong、tingzhidelianghaofanyingxing。jiansuchilunshao，yizhilezi🐼dongduijiaoshidedongzuoyin，shiheduanpianpaishedejing🃏touqudong。
安静、平滑的自动对焦
stmbujinmadashiyizhongzidongduijiaoqudongmada，kegenjumaichongxinhaodezengjiankongzhimadazhuandongdedongzuo，qidong、tingzhidefanyingxinglianghao。tedianshiketongguojiandandejixiejiegoushixianqu🐽dong。gengyishixianqudongdanyuandexiaoxinghua。youyuyizhilezidongduijiaoshidedongzuoyinꦿ，shiheduanpianpaishe。
左：“STM+导螺杆型”单元的结构右：“STM+齿轮型”单元的结构
佳能的STM步进马达分导螺杆型和齿轮型两种结构，根据镜头的特性采用不同的结构。
※ xiangjidezidongduijiaomoshiwei“dancizidongduijiao”shi，wanchengzidongduijiaohou，banankuaimenanniubingzhuandongduijiaohuan，jikeshoudongdiaojiao。ciwai，weikaiqixiangjidian💝yuan、zidongguanbidianyuanjipaishedaijishiwufashoudongdiaoᩚᩚᩚᩚᩚᩚᩚᩚᩚ𒀱ᩚᩚᩚjiao。
“STM+导螺杆型”单元，机械结构简单，实现了安静、平滑的自动对焦驱动
cigouzaokejiangstmbujinmadazhuandongdonglizhijiechuanjiduijiaojingpianzu，chanshengqianhoutuiladequdongli。paishejingzhituxianghuoduanpiandounengshixiananjingliuchangdezidong🐲duijiao。
“STM+齿轮型”单元可实现小型设计，适合作为小型镜头的驱动器
gouzaoxiaoqiao，youyiyuduijiaodanyuandexiaoxinghua。biyiwangdedcmadaqudongyingenganjing，buyiganraoduanpianpaishe。
benwangzhanbaohanyibufenguanggao/shichangtuiguangdengneirong，jingqingzhixi。
