镜头的技术介绍
环形USM／微型USM／NANO USM
chaoshengbomadatongguojiangchaoshengbozhendongzhuanhuanweidongnenglaiqudongjingtou，♓juyouduijiaoxunsu、anjingqiezhichiquanshishoudongduijiaodengtedian。gaoniujudehuanxingusmyuxiaoxinghuadeweixingusmshitongguoxuanzhuanyundonglaidaidongjingtouduijiao，erduijiaopinghuadenano usmꦛshitongguozhixianwangfuyundonglaidaidongjingtouduijiao。
以超声波动力的新技术实现安静快速的自动对焦
1987年佳能首次将其用于EF 300mm f/2.8L USM。
usmchaoshengbomadatongguojiangchaoshengbozhendongzhuanhuanweidongnenglaiqudongjingtou。anzhaobutongdexingtaikefenweihuanxingusm、weixingusmhenano usmsanzhongleixing。qigongtongdianshijibenjiegouzhongjunbaohanlejuyoudanxingdingzi。dingziyuyadiantaociyuanjianlianjie，tongguoxiangyadiantaociyuanjianshijiadianya，shidingzifashengbolangbandechao꧟shengbozhendongzuoweiqudongyuan，daidongjingtouduijiao。usmchaoshengbomadayidihaodianliangshixianlegaolingmindudegaosuduijiao、pinghuadeduijiaoguoduxiaoguoyijianjingdecaozuoyin，bingshixianlequanshishoudongduijiao。jiegoujiandanyeshiusmchaoshengbomadadeyidatedian。
佳能镜头所采用的超声波马达
环形USM
[广告]环形USM工作演示CG
huanxingusmchaoshengbomadachengyuanhuanxing，jiegoujiandan，yu𝓀🍒yuanxingdejingtoujiegouhenpipei。benshenjuyouxiangdangqiangdeniuju、gengyouliyuqudongdaguangquanjichaoyuanshejingtou，bingqieshiquanshishoudongduijiaochengweikeneng。
微型USM
jihuanxingusmzhihou，jianengyoukaifalebushou💟jingtoukoujingxianzhideཧweixingusmchaoshengbomada。tongyangzhichiquanshishoudongduijiao，bingzaixuyaokongzhijingtoutijijizhongliangdejingtouzhong，fahuizheyoushi。youyuchengbendedaolegenghaodekongzhi，yincinengzaigengduodejingtoushangdeyiyingyong。
NANO USM
[广告]NANO USM工作演示CG
nano usmchengxiaoxingxinpianzhuang，tijihenxiao，caiyongleyuhuanxingusmjiweixingusmxuanzhuanyundongsuobutongdezhixianwangfuyundongxingshi。jubeihuanxingusmmadagaosuduijiaoyudaoluoganxingstmbujinmadaduijiaoanjingliuchangdetedian。nenggouzaipaishejingzhituxiangshijinxinggaosuduijiao。zaipeihejianenggaoxingnengdezhuizongzidongduijiaopaisheshipinshi，chuketigongningjingꦡdeduijiaoqudongwai，jiaodianqiehuanguodudexiaoguoyehenpinghuanwenjian，bingqiezhichiquanshishoudongduijiao。
benwangzhanbaohanyibufenguanggao/shichangtuiguangdengneirong，jingqingzhixi。
