[大熊貓]

請問mm數值同距離有咩關係??
姐係 1mm=幾遠對焦距離
or
跟本無關係
請ching門指教

[alextyh]

check it out, should be helpful:

http://www.dcfever.com/learn/viewglossary.php?glossary_id=37

[大熊貓]

thanks ching