[stephentong1111]

我想買支 Sigma 18-50mm F2.8 EX DC MACRO HSM 配部 500D
但唔知 Canon mount 既有無 HSM 功能 ?
Search 過 google 又話 HSM 只係 for nikon 等等, 好疑惑希望大家解答
同埋如果呢支同價錢差唔多既 Sigma 17-70mm F2.8-4 DC MACRO OS HSM 比, 邊支會好D ? THX

[nwt15]

唔係啩?? Canon mount 冇HSM??

[kaiming184]

yes, Canon mount does not have HSM
http://www.dcfever.com/lens/specification.php?id=423

[stephentong1111]

即係所有 SIGMA 鏡 Canon mount 既都係無 HSM ?

[heilor]

E~咁我用緊sigma 24~70 2.8 DG HSM +5D2係咪即係無HSM ga? 不過都好靜好快wo

[nwt15]

如果Canon mount 冇HSM 應該會平好多喎...

[tonyctkwok]

我諗只係呢支 Sigma 18-50mm F2.8 EX DC MACRO HSM Canon mount 冇HSM, sigma 24~70 2.8 DG HSM Canon mount 有, 唔係邊會咁靜咁快.

[stephentong1111]

甘 Sigma 17-70mm F2.8-4 DC MACRO OS HSM 呢支係咪有? 如果係我買呢支