kfegk2002 wrote:
不會喔!!!夜拍也很...(恕刪)
請問大橋那張是用富士的哪一顆鏡頭拍的?
看EXIF顯示的光圈值是0耶?
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eric060606 wrote:
聽說富士新的機子x-e2似乎沒有偷吃了
Fuji X-E2看來仍有ISO虛標的問題:
http://www.julur.com/forum/thread-294598-1-1.html
"不出所料，相同视场情况下，平均测光模式，A7与EP1都有相同的快门数值：1/500，出乎意料的是，XE2快门只有1/160，原则上慢了2档。为免作假嫌疑，拍了器材屏幕实际照片，证明都在1.4光圈设定上。" (註: ISO三機都設為6400)
"可以看出，EX2虽然在相同光圈下快门慢了2档，但从最终出图来看，XE2成像要比A7曝光值大一些，所以实际ISO值应该只是虚标了1档。"
DPReview也有點出這個問題:
http://www.dpreview.com/reviews/fujifilm-x-e2/13
"By our tests, the X-E2's measured sensitivities are around 1/2 - 2/3EV lower than marked, which is unusual for a modern camera. This means that for any given light level, the X-E2 has to use a significantly slower shutter speed, brighter aperture or higher ISO to get an image of the same brightness as an accurately-rated camera."
"However, a significant part of this advantage stems from the camera's need for longer exposures to achieve the same JPEG brightness level as its rivals. This is the way the ISO standard is measured, and the basis on which we conduct this test. However the X-E2's need for unusually long exposures explains much of the difference we see between it and the Sony NEX-6; in fact it's probably better compared to the performance of its peers set 1EV lower (i.e. ISO 400 on the Fujifilm compared to ISO 200 on its rivals)."
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兩個網站講到同一件事: 同樣的光圈/ISO設定下要得到相同的亮度, X-E2必須要有更長的曝光時間
(而更長的曝光時間意味著更不利於手持夜拍)
DPReview更建議ISO比較時, X-E2應和其他機種低一級來比較才恰當(如X-E2 ISO400: NEX6 ISO200)
另外若以DPReview的JPG圖形比較, X-E2 NR0的Chroma noise其實比不上NEX 6 Normal
但RAW的躁訊比較, X-E2則難以置信的好上一大截. (ACR 7.3 noise reduction都設為0)
DPReview認為Fuji在RAW的處理也動了一些"非光學性"的手腳(個人解讀是Fuji連RAW都在抹躁訊)
"The dramatic advantage the X-E2 showed in the previous test is also apparent if processed with Adobe Camera Raw. The results are almost implausibly good, even taking into account the camera's additional exposure. This suggests that some non-optional noise reduction is creeping into the process somewhere."
最後, DPReview覺得X-E2低光下拍人像很"蠟像".
可能原因有較淺的景深/重手的NR/臉部對焦有輕微失焦的傾向
We shot many, many portrait images to attempt to pin-down what was causing the slightly waxy skin effect, experimenting with Film Simulation modes, DR modes, Face Detection and light sources. At the end of this, we think it's an unfortunate combination of a number of factors - shallow depth-of-field, heavy noise reduction and a tendency for Face Detection to missfocus. Fujifilm says it isn't applying any extra noise reduction or processing to skintones.
