[Ernest Tang]

RE: NIKON 85MM F1.8

昨日係深水埗黃金地庫翻閱一本關於鏡頭既書籍，講到上述鏡頭若配上NIKON D50 在拍攝人像時會出現高反差現象(係書本內並冇詳細解釋)，我想知道若人像出現高反差現像會係點既呢? 而其提供的解決方法係︰

1.將光圈收細一至兩級
2.選擇人像模式拍攝

呢個問題有勞各位師兄為我解答，因我會係短期內購買此鏡，TKS!

[Rol]

高反差 ---> all photo software can adjust the contrast, you adjust the contrast and will know the effect.

High contract usually is for landscape shooting with clear contour and sharp edge. But the shortcoming is dynamic range will be narrower so not easy for portrait shooting.


人像出現高反差現像會係點既呢 --> depend on what environment, suppose at the sunny day, the human face has bright side and shadow side. High contrast will made bright side more bright, shadow side become more dark. (narrower dynamic range)


講到上述鏡頭若配上NIKON D50 在拍攝人像時會出現高反差現象 --> I don't know why book say this.. But I think the issue is not at the lens but at D50 because default setting at D50 incline to DC color for direct jpg.


而其提供的解決方法係︰

1.將光圈收細一至兩級 --> in theory should be full open aperture with lower contrast than smaller aperture.
2.選擇人像模式拍攝 ---> it works, also you can try to set D50 contrast to -1, or load curve like "all in one" with wider dynamic ranage