[Kenny705]

本人只知道ccd size 不是135mm film 一樣大，所以要乘這個 factor。至於原因就........

[Briancat]

好似是因為 CCD or CMOS 係細過135菲林size, 所以要乘這 factor.
而 1ds, pro14N 等是 1 : 1 的

[Kenny705]

but why the CCD is smaller than film, so we need to mltiply this factor?

[軍佬]

成本既問題，一片全片幅既 CCD/CMOS 好貴，要將 DSLR 普及就只有用較細既 細 size CCD/CMOS。
Canon EOS-1Ds - $53000
Kodak DCS-14n - $48000
Contax N Digital - $58000

[Kenny705]

I see, so the size of CCD is bigger, then the "factor" would be smaller.

Ar, I have a question again, the noise,

since the noise of DSLR is much better than DC likeG5, CP5400.

is it just because the bigger size of CCD.

[Kenny705]

I see, so the size of CCD is bigger, then the "factor" would be smaller.

Ar, I have a question again, the noise,

since the noise of DSLR is much better than DC likeG5, CP5400.

is it just because the bigger size of CCD?

[vaworld]

>>is it just because the bigger size of CCD? <<

Yes, for equal technology level.