[shunshunshun]

各位 ~ 例如我支kit 鏡 18-55mm f3.5-5.6 IS 為例
上網睇佢既最近對焦距離係0.35m....咁即係35cm啦 ~
但係我而家影隻錶...."隊"到埋去around 15cm左右都可以對倒焦.

咁點解網上面會話佢既最近對焦距離係0.35m..而唔係0.15m 呢？？？

[jsklee]

the distance should be measured from the film (sensor) to the subject.

[h0001244]

0.15m is your working distance....
be very careful if you add EF12 or EF25... some lens like 17-55 can give you magnification over 1X but working distance is 0.... the glass element pressing the insect -> no use

[onjo3]

distance is count from ur sensor (焦平面), not lens or somewhere of body.

[herbert929]

咁如果咁計....好似防震百微....最近對焦距離係0.3m....但佢支鏡都唔止0.3m 長啦 ~ 咁即係貼到幾埋影都得 ?

[h0001244]

支百微無成尺呀？

[biblekwan]

"支百微無成尺呀"

哈哈, 好好笑~