如果想表现的画面就是黑暗弱光的，就注定要忍受噪点？

为何有的照片明明画面很黑，却几乎没见什么噪点？

这里只讨论胶卷的情况。

懂英文多好，隨便寫一段垃圾都有人來膜拜。

关注！

那些噪点是扫描仪的吧

lz 说的光学放大还是扫描电子文档？如果是扫描电子文档，底片是负片还是反转片？不明确这两个问题的解释是没有针对性的。

进来学习下

沉得这么快吗？也想知道答案。

这是假的，颗粒就是噪声。
Film grain is a repeating noise pattern that is an order of magnitude larger than the
fundamental image particles. Film resolution is directly related to the size and distribution of
silver particles in an emulsion. The noise pattern tends to obscure detail rather than define
detail. The pattern is superimposed over the image, not the source of the image.
A common mistake [made by the author many, many times], is to think that film grain is the
image-forming element. Many Kodak and Fuji publications, including much of the popular
photographic literature (magazines), commonly make the mistake of referring to fundamental
film particles as film grain. This further propagates the imprecise usage of the term.

镜头会不会导致最后画面上的“点”。还有感觉我的照片2k*2k扫描出来分辨率都很低，怎么回事

哇，这是真的？学习了！

正解

胶卷的感光剂有多个涂层，其中高感光涂层颗粒比较粗，主要感受低光。低感光涂层颗粒比较细，主要感受高光。所以高光部位比较细腻，低光部位比较粗。

那个不是噪点
噪点是数码里面的概念。
胶片扫描了才会有噪点，如果不是扫描出来的照片，欠曝就是黑