[melo15]

我發覺d 相只係 72 dpi ，反而 G10 有180 dpi

[orabuln]

用 RAW... 再用 DPP改...

[afriwong]

你係咪用咗最細File?

[orabuln]

以我所知... 30D 40D 50D 400D 5D12 1DS3... 可能全線單反... 全部都係72 DPI... 至於有無得係機到 SET DPI 就無研究過...

[h0001244]

影到 300 dpi ? ? ? ?
my understanding is that you don't shoot to 300dpi but you print to 300dpi

with a file of 2400x1800 pixels, if you print 300dpi, you will get 8inch x 6inch

correct me if my understanding is wrong

[melo15]

我估係無得set，而G10係有得選擇 超精細 就影到180 dpi

[raincoat_lam]

set dpi 做咩?! 你要直出output ?

[Marksman01]

h0001244 C Hing is right

[Marksman01]

http://www.design215.com/toolbox/megapixels.php

See the above website showing how dpi and mega pixel related

[SleepingIII]

无论用何种格式都可以在软件中修改。DPI就是点没英寸的意思，不输出的话，DPI这东西就没有任何意义，也没有任何效果。

[petercyc]

一個九唔達八既話題......

[afriwong]

睇完條Link明多咗了…

[melo15]

我要影 d product 放o係 catalogue 度，個 designer 要求相片要有 300dpi

[h0001244]

melo,

<<<個 designer 要求相片要有 300dpi>>>

eg. if the photo on catalogue is of 6 inch x 4 inch , then you need 6 x 300 times 4 x 300 pixel, that is 1800x1200 pixel.