Kodak R-27 Gray Cards are used to help check lighting ratios and lighting distribution. They are valuable when you do slide copying or are trying to adjust for proper skin tones in black and white. These cards now incorporate a higher quality MunSell 18% Reflectance (Gray) Neutral Patch. Both cards are double-sided – one side gray and one side white.
柯達 R-27 灰卡用於幫助檢查照明比例和照明分布。當您進行幻燈片拷貝或試圖調整黑白照片中適當的膚色時,它們非常有價值。
現在,這些卡片採用了更高質量的 MunSell 18% 反射率(灰色)中性色塊。兩張卡片均為雙面–一面為灰色,一面為白色。