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。
立体照片把同一场景从左右两个略有不同的位置各拍一张，并排放在一起。放进立体镜里看，两张合成一张，有了纵深。
十九世纪，许多家庭有一架立体镜和一盒立体照片，坐在客厅里就能看远方的城市和风景。
站在原地，把头轻轻左右移动，看近处和远处的物体怎样相对移动。一张照片只有一个视点，留意这种变化，能帮你决定站在哪里拍。
「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 stereograph pairs two photographs of the same scene, taken from two slightly different positions. Seen through a stereoscope, they merge into one picture with depth.
In the nineteenth century many households had a stereoscope and a box of cards, and could look at distant cities and landscapes from the sitting room.
Stand still and move your head gently from side to side. Watch near and far objects shift against each other. A single photograph has one viewpoint; noticing this shift helps you choose where to stand.
"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.