[fever04]

揾笨測試—數碼雙週 182期 p42
內文說以相機原廠預設值用同一支Tamron 18-250鏡頭比試下，Canon EOS 50D的解像力達到2324LW/PH(中央)及2168LW/PH(邊緣)；Pentax K-7 解像力比較低只有1893LW/PH(中央)及1856LW/PH(邊緣)，而且影像沒有EOS 50D那樣結實。
但數碼雙週並沒有指出 EOS 50D 的預設值銳利度是 +3，而 K-7 的預設值銳利度是 +1！ 而且在50D邊緣測試相片中有明顯的紫邊就完全冇講出來！
我找來一部50D及一部K20D作比較，將兩部機的銳利度都設定為0度，發覺
K-20D的影像比50D更結實更銳利！
真相是在絕對相同的設定下 K20D已經比50D更銳利！K-7會更好。
這種隱藏了重要數據的測試，不盡不實，沒有盡了傳媒的責任！

[h0001244]

How do you know that sharpness of 0 in K20D is perfectly equavalent to 50D??

[hksawing]

你在Canon區這樣說很容易被人鬧

[william_lau]

dpreview係影raw後用lightroom同一setting出相作比較，以示公平。 但比較jpg時，亦都係用Default Parameters (standard)。 各機的algorithm唔同，就算各機set sharpness為0亦唔代表公平。

[fever04]

You should ask 數碼雙週 is that sharpness of 1 in K-7D perfectly equavalent to sharpness of 3 in 50D??
0 level usually means the neutral value.

[ssannwong]

12月CAPA雜誌測試比較7D同D300s, 比較得好睇好多, 但都係暗踩D300s [sosad]

[fever04]

數碼雙週是用 jpeg 做測試。

[wesleyyau]

數碼x週以前曾經買過一年... 但係當我睇過內地版capa,digital camera 等等... 你就知數碼x週o既測試真係睇過就算... 內文d 相同其他雜誌亦冇得比...
依家都冇買數碼x週囉... =p

[h0001244]

I don't agree that 數碼雙週 is that sharpness of 1 in K-7D perfectly equavalent to sharpness of 3 in 50D
But I also don't agree that setting sharpness to 0 for both camera means that they are both comparing on the same ground, since they are jpeg outputs with different camera processors.

[chengyison]

Why aren't the two machines set to their best performance and then make comparisons. In my opinion, it is more realistic to test or compare two mchaines at their full performance. Is someone more relieved if the pq of his/her DC with 500 pixels is better than my DC with 1000 pixels when both DCs are set to shoot 500 pixels photos? If two machines are not tested at full swing, then the result is questionable (in my opinion).

[petercyc]

if comparing two mchaines for their full performance, I think the whole book would consist of only one topic......50D VS K7D. (one book may be not enough)

Is there really has a best setting / performance? Some one like to take sharp photo for lanscape / wildlife while other like to take soft image for portait . Different photo for different purpose and different people.

Come on... it just a reference wich cannot reflect what you need!

[postman88]

群眾眼光係雪亮嘅..我已經無買數碼X周好耐,內地d攝影雜誌係專業好多

[lou4love]

揾笨測試... : )
1st : Canon 銳利度標準 not same as Pentax 標準
2nd : 如果將兩部機的銳利度都設定為最高/最好程度. 50D is better than K7
3rd : 紫邊問題是鏡頭多於機
4th : 0 level is not neutral value

[ill]

FORGET IT...

[ko4_6]

其實好多雜誌的測試不準的有一次看e乜雜誌用Canon同sony比noise
,Canon 用 iso 800,sony用iso 400 比相片noise之後話sony noise比Canon 小......我看完之後都無乜點買e乜雜誌.......