[longking]

This is transfered from a TaiWan review on P880 , but i am a new bie , so would sb tell me what tihs mean an how about the noise control of P880:

Imatest 比較
快速對照表: 各圖右下角中的 Middle Gray 122 noise RGBY %
ISO R G B Y
50 1.19 1.08 1.15 0.97
100 1.45 1.26 1.33 1.13
200 1.84 0.53 1.69 1.34
400 2.70 2.17 2.31 1.95


thanks for your help!

[Siman Chan]

會員戶口已被刪除，資料已被標示為不顯示

[letterboy]

that's mean @ ISO 50 Red:1.19 Green:1.08 Blue:1.15 Gray:0.97

if the number over 1 , that's mean the noise will be easily accured.
under 1 means noise will not easily seen.

so @ iso 400 , there will be high noise level.

Conclusion:
P880 is not a high noise level @ iso 50.
it is very good camera that's control noise level.
^.^ hope you will enjoy after you've bought it.

[alvincyt]

試左兩張相，一張有喑角，一張冇（冇果張我用iso 1600拍，唔知有冇關係）

有, iso 50

冇, iso 1600

[longking]

thanks very much, all of you are very nice.

alvincyt, will the 像素 affect the result "喑角" ,since ISO1600 only has 80k pixels , or may be your bed room is a bit messed :)

[alvincyt]

"alvincyt, will the 像素 affect the result "喑角" ,since ISO1600 only has 80k pixels , or may be your bed room is a bit messed :) "

1. 應該唔關pixel事，因為而家兩張都縮細左，但仍然見到分別。
2. 間房右上角唔messed掛?
3. 搵日出去外拍再試真D。

[alvincyt]

P880像素同CCD size，跟Ricoh GR Digital一樣，以下我列出今期PC Photo做既test report，你就知道P880既noise control如何。

GR Digital
ISO 64: 1.34%
ISO 100: 1.71%
ISO 200: 3%
ISO 400: 6.63%
ISO 800: 8.09%
ISO 1600: 13.77%

(不過佢唔會好似P880咁，去到ISO 800就夾硬resize張相到0.8MP咁衰。講真，用得呢個grade既機既人，少少後製都會識，除noise同resize自己做都得啦！使咩你Kodak做埋我果份呀)

而且唔好忘記GR Digital比P880貴好多。

[alvincyt]

原來仲有Canon S80既test report，佢既像素同CCD size又係同Kodak一樣。

S80
ISO 50: 0.95%
ISO 100: 1.41%
ISO 200: 2.24%
ISO 400: 4.11%

[alvincyt]

仲有呢度有D 24mm既sample，又唔見有喑角，真係得意。

http://www.dcview.com.tw/article/newreadarticle.asp?id=4066

搵日等我去室外試清楚。

[longking]

在DPREVIE的评测中，S80的解析力好过P880，P880在其中几个比较对象中几乎是最差的：

http://www.dpreview.com/reviews/canons80/page13.asp

这个我比较介意，因为杂讯、紫边这些可以通过后期的PS可以处理一些，但解析力和细节的表现就无办法补救，不过机无完机，要求太多似乎也不合理。其实我之前是中意奥记的C8080，可惜已经停产好耐，而P880的24MM广角，手动变焦也是比较引人的，所以我也很关注。

期待alvincyt师兄的进一步测试，THANKS

[alvincyt]

應該會好過LX-1少少，不過我估計P880係用左少少解析力去作為降低訊噪既平衡。

[alvincyt]

剛發現收細光圈可消退喑角。

[hfkwong]

多謝 alvincyt 兄既資料。

原來 GR noise 咁勁? 唔話都唔知。

[alvincyt]

我影的P880測試相：

[alvincyt]

三張都係24mm焦距及f/4.0光圈