di880 模塊

所在地: 福建省 廈門市
發布時間: 2024-12-02
詳細信息

di880  模塊

di880

針孔與相紙中央的距離近,與相紙四角的距離遠,這種距離上的差異,導致曝光不平均,形成暗角,特別是廣角型的針孔相機,暗角尤其明顯。

解決方法之一,是放置相紙的時候,把相紙卷曲成橢圓面。這樣,針孔與相紙的中央的距離與相紙四角的距離接近,從而使相紙中央與四角的曝光一致。

另外,制作針孔的材料越厚,暗角越明顯。可以選擇一些較薄的材料制作針孔,例如鋁箔,厚度只有0.012mm至0.015mm。

使用減光棒(dodging tool),也可以暗角。

di880 


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