[Alan wong GG]

各位師兄!!我想問係唔係所有鏡頭安在300d上都會與實際焦距唔同!會乘1.6??
那麼一支好wide既廣角鏡乘上1.6後咪............??
究竟是怎樣一會事!! thanks!!!!!!!!!!!!!!!!

[fdman]

CCD 比菲林細，效果好似裁左相咁樣

[tam_dominic]

The film size (CMOS) of 300D is smaller then 35mm camera film size thus the focal length is 1.6x. D70 film size (CCD) is a bit larger and the focal length is 1.5x

Imagine you take only the center part of the film, then the image looks like shot from a longer focal. eg 50mm become 80mm

The effect is good for long focal length but bad for wide angle :-)
It is good or bad depend what you use it for.

Happy shooting.

[kunyu]

除了一些DSLR尊用o既鏡頭外,一般135機用o既鏡頭都會窄左,用廣角鏡有時都幾冇癮o架!不過用tele就唔同喇,50變80,100變160,300變480,重有一樣就係由於視角窄左,所以只會用到支鏡頭偏中間部分,就算用一些普通o既鏡頭都有相當的質素....

[Alan wong GG]

各位師兄咁其實300d支唔支援其他牌子既lens架!
有冇話邊個牌子既lens較適合300d???
thanks for your reply!!!!!