胶片感来自影调和颜色怎样形成，颗粒、暖色和发灰的暗部只是表面。

两者都是「颗粒状」的，但成因、分布和观感都不同。

高光是慢慢变亮还是突然变白，往往是数码照片最先露馅的地方。

颜色在亮部和暗部怎样变化，过渡是否连贯，比颜色本身更能说明一张照片。

风格是反复做出的选择，可以从自己最喜欢的照片里找出来。

胶片感有好几个维度，不同胶片之间差别很大，一个数字只能当作起点。

The film look comes from how tone and colour are formed; grain, warmth and faded blacks are only the surface.

Both look granular, but they form differently, sit in different tones and read differently.

Whether highlights brighten gradually or turn white at once is often what gives a digital photo away first.

How colour changes between shadows and highlights, and whether transitions hold together, says more than the colours themselves.

Style is choices made again and again, and you can find yours in the photos you like best.

The film look has several dimensions and films differ widely, so a single number is only a starting point.