[justinyou]

請問感光元件是什麼?

如果同像素的機，一個是1/1.8 吋 ，一個是1/2.4 吋

那是否後者好些呢?

謝謝~~

[learnmore00]

1/1.8 is better than 1/2.4
I learn through the internet. If I am wrong, teach me pls.

[ladios_sopp]

DC / DSLR感光元件, 通常指 CMOS 同 CCD, 係代替菲林去紀錄影像o既零件, 一般黎講係愈大愈好, 因為noise會少左, 所以用番你個例子的話, 1/1.8" 會好過 1/2.4 (假設所有條件一樣, 只係size有分別)

[schindler]

感光元件正如菲林機的底片一樣

一個是1/1.8 吋 ，一個是1/2.4 吋係指感光元件的大小
1/1.8 吋係比一個是1/2.4 吋大

而邊個感光元件好視乎感光元件的製作及QC
無話邊個好過邊個

[edmondc]

Want to know :

1/1.8 吋係 = 1.8吋 and 1/2.4 = 2.4吋大 LCD
if yes, then what the "1/" means?

[小小生]

1吋有16分
1/1.8吋大約 = 8.9分 ,1/2.4吋大約 = 6.7分

[Philippe]

我諗你搞錯咗邊個係分母,邊個係分子.
而且網頁話係冇一定數學關係的.

[edmondc]

it is interesting, take casio z40 as an example.
ad said, the camera has a 2.0 inch lcd, but the spec stated 1/2.5 inch, it makes me confused.

http://world.casio.com/exilim/en/ex_z30_z40/function.html
http://world.casio.com/exilim/en/ex_z30_z40/spec.html

any idea, friends
Thanks

[tatkee]

是否 1/2.5 inch = 1over 2.5 = 0.4 inch in diagonal？

[ronail]

2" 係指LCD
1/2.5"係指ccd

[edmondc]

thanks.

but why don't they say 0.4 inch instead, but say 1/(2.5) inch??

[learnmore00]

pls read this

http://www.dpreview.com/learn/?/Glossary/Camera_System/Sensor_Sizes_01.htm

and you will know more,

actually if all condition is the same, larger ccd is better.

Therefore A1 , F717 can take better image ( not compared with DSLR) , I wonder the super zoom lens digital cameras which have 1/2.5 or 1/2.7 ccd or even FZ1 has 1/3.2 CCD can take good pictures, offcourse they are not compared with A1, F717, cp5700, cp5000.

[nicktws]

1/1.8吋就是 「1 over 1.8吋」, 1/2.4吋就是「1 over 2.4吋」, 不是很明顯嗎?

如果條件相同, 大的感光元件會好D, 但係仲有好多野要考慮喎, 例如一個係CCD, 另一個係CMOS就唔可以淨係比較大細喎; 另外仲要睇下點與點之間的間隔有多闊, 就算2個感光元件都是CCD同一樣大細, 間隔闊的會差D, 因為實質感光面少左, 之餘此類。


>but why don't they say 0.4 inch instead, but say 1/(2.5) inch??

1/2.5吋就易寫, 咁1/1.8吋呢? 寫成0.555555......幾多個位好呢? 份數就有這個好處。 而且我個人覺得生產商寫份數, 就算個感光元件細, 俾人睇落都冇咁「寒暄」。