[ELIZABETH]

動態範圍對新型DSLR的確充滿挑戰,
某日本雜誌對2006DSLR作正面比較,

數年前高調地號稱高動態範圍的FFT-CCD被
新一代Canon CMOS, Nikon CCD(SONY)力壓下擊退,
SuperCCD亦被全面打敗.
的確冇人鍾意原地踏步, 歷史洪流正在改寫...!

請看圖

[Tai Man Lam]

有?所謂高動態範圍，只不過係將影像對比度調低做出來?假象，唔信可以用RAW軟件自己試，我部SONY R1就係咁。

[Tai Man Lam]

Sony R1出果陣其中一樣強調?就係高動態範圍，而且佢講明係用調節對比度?方式達成。
__________________________________________________
Tai Man Lam
有d唔同,動態範圍如可以出16個灰度係唔可用軟件變出128個灰度

[Tai Man Lam]

另外，此測試準確性我有保留，因為我唔知佢用乜設定、有網站話用標準同鮮豔模式出來?動態範圍都已經差一節，我另外有個比較早期?富士S20Pro vs奧林巴斯C8080WZ，需然C8080?CCD比較大、解象度都比較高，不過S20Pro動態範圍都明顯比較好，畫面都明顯較實正。
唔信可以自己入去睇：

網址
http://www.dcresource.com/reviews/fuji/finepix_s20_pro-review/

C8080WZ樣張：
http://www.dcresource.com/reviews/olympus/c8080wz-review/P3200088.JPG

S20PRO樣張：
http://www.dcresource.com/reviews/fuji/finepix_s20_pro-review/DSCF0276.JPG

[MN56]

>>>>有d唔同,動態範圍如可以出16個灰度係唔可用軟件變出128個灰度

>>>>


厘個係色深 colour depth，唔係動態範圍 dynamic range，唔好搞錯呀！

[dcpower]

好難客觀比較動態範圍,
28mm vs 35mm,拍攝距離唔同,爆光設定唔同,iso 50 vs iso200
S20明顯光左一兩級,但整體既感覺C-8080果張仍然比較順眼,

[MN56]

動態範圍唔係藝術名詞，科學既terms，絕對可以客觀比較。

[dcpower]

>絕對可以客觀比較。

我係指S20 同C8080既比較,最大的差別並不是甚麼動態範圍,
而係爆光設定及拍攝焦距

[kingkonghk]

動態範圍650平方尺, 尺價$4500, 筍盤

[tl9078]

雞能，你d日文都好勁喎，你考左第一級嗎？

你都幾跟日本潮流呀吓！

但係真係估唔到富士同sony都咁差！真令人失望！

[playd70]

頭4位都係canon，有些失望。估唔到4/3唔係最差，有些意外。

[Cosplay]

Canon DSLR 對顏色的調整確有一手，果然利害。
不過，我不懂日文，不知道他用什麼準則來評鑑？
如果有詳細的說明就好。

[shellwe]

佳能在数码方面确切领先了，而且不止一个马位这么少。

[d2c]

會員戶口已被刪除，資料已被標示為不顯示

[ELIZABETH]

Dynamic Range

Our new Dynamic Range measurement system involves shooting a calibrated Stouffer Step Wedge (13 stops total range) which is backlit using a daylight balanced lamp (98 CRI). A single shot of this produces a gray scale wedge from (the cameras) black to clipped white (example below). Each step of the scale is equivalent to 1/3 EV (a third of a stop), we select one step as 'middle gray' and measure outwards to define the dynamic range. Hence there are 'two sides' to our results, the amount of shadow range (below middle gray) and the amount of highlight range (above middle gray).



To most people highlight range is the first thing they think about when talking about dynamic range, that is the amount of highlight detail the camera can capture before it clips to white. Shadow range is more complicated, in our test we stop measuring values below middle gray as soon as the luminance value drops below our defined 'black point' (about 2% luminance) or the signal-to-noise ratio drops below a predefined value (where shadow detail would be swamped by noise), whichever comes first.