FilmAnalysis · 照片背后的故事

玻璃上的彩色淀粉粒

从照片出发,读一段摄影史。故事和照片之间只是阅读上的联想,不代表照片的作者、相机或实际用的胶卷。

1907 · 胶片

1907 年,卢米埃尔兄弟推出 Autochrome 彩色玻璃版。玻璃上铺着一层染成不同颜色的淀粉颗粒,起滤色作用。

成品是一块玻璃,要对着光或用投影才能看清颜色。那种柔和、带点颗粒的色彩,就来自这些细小的淀粉粒。玻璃也易碎,需要小心保存。

不妨试试

找一张色彩柔和的照片,分辨它的柔和从哪里来:是颜色彼此接近,还是明暗反差低?两种情况在屏幕上都显得温和,画面里的关系却不一样。

「不妨试试」是编辑设计的练习,不是史实。

资料出处

接着读

把感光材料卷起来

先是电影胶片,后有幻灯片

最后一卷 Kodachrome

故事卡与徽章分开收藏。为照片评分仍按原有规则收集徽章。

FilmAnalysis · Stories behind the frame

Grains of colour on glass

Read a little photographic history. These connections suggest ways to look; they say nothing about authorship, cameras or the physical film stock.

1907 · Film

In 1907 the Lumière brothers launched the Autochrome colour plate. A layer of starch grains, dyed different colours, covered the glass and acted as a colour filter.

The result is a glass plate, seen properly only against light or projected. Its soft, slightly grainy colour comes from those tiny grains, and the glass is fragile.

Try this

Find a photograph with gentle colour and work out where the gentleness comes from: colours close to each other, or low contrast between light and dark? Both look mild on a screen, but they are different relationships in the picture.

"Try this" is an exercise written by the editors, not history.

Sources

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