[M1A1]

兩部都係12x，而基本上所有廠商的計算都是劃一的！FZ20的36-432mm係12x，Z3的35-420mm都係12x，分別係在大家最wide的時候，相差1mm咁多！

[b_kid]

通常係將最 wide 焦距作倍數:
e.g.
28mm x 12 =(28mm - 336mm)
35mm x 12 = (35mm - 420mm)
36mm x 12 = (36mm - 432mm)
38mm x 12 = (38mm - 456mm)

[小小生]

其實幾多倍係冇意義,要看幾多mm至實際
例如:之前有部DC得三倍變焦,但就有450mm-1350mm差幾遠

[b_kid]

450mm-1350mm 咪三倍囉！

450mm x 1倍 = 450mm
450mm x 2倍 = 900mm
450mm x 3倍 = 1350mm 囉！