什麼是HSM?

2007-09-06 7:21 pm
什麼是HSM? thank you

回答 (3)

2007-09-06 7:26 pm
✔ 最佳答案
HSM (超聲速馬達)

超聲速鏡頭配備由超聲波驅動之馬達,自動對焦寧靜、高速。
2007-09-18 7:22 am
Canon 係USM 呀
2007-09-06 7:29 pm
HSM stands for Hyper Sonic Motor. It is widely used in nowaday's sautofocus lenses. The main advantage of HSM is speed and quiet operation.


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