FilmAnalysisFilmAnalysis · 照片背后的故事
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。
盐纸印相把底片压在感光纸上，放在阳光下晒出正像。它在十九世纪中叶流行，表面是哑光的，影像沉在纸的纤维里。
所以盐纸照片看起来柔和、不反光。照片的质感不只来自镜头和底片，也来自印它的纸。
把一张照片放大，看柔和出现在哪里：只在明暗交界处变软，还是整张都缺少纹理？屏幕说明不了原作用的是什么纸，但能让你开始留意照片的表面。
「不妨试试」是编辑设计的练习，不是史实。
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
Read a little photographic history. These connections suggest ways to look; they say nothing about authorship, cameras or the physical film stock.
A salted paper print was made by pressing a negative onto sensitised paper and exposing it to sunlight. Popular in the mid-nineteenth century, it has a matte surface, with the image sitting in the paper fibres.
That is why salt prints look soft and do not shine. How a photograph looks depends on the paper as well as the lens and negative.
Enlarge a picture and find where the softness is. Is it only at the edges between light and dark, or across the whole frame? A screen cannot tell you what paper an original was printed on, but it can get you looking at surfaces.
"Try this" is an exercise written by the editors, not history.
Story cards have their own shelf. Rating photographs still collects badges under the existing rules.