S-Log is a gamma curve designed to record and transmit as much of the information recorded by your camera’s sensor as possible. S-Log breathes life into your images by preserving the wide colour gamut and dynamic range recorded by the sensor.

Suitable for Sony Cinema Line cameras. Here are two new LUT’s for use with Sony cameras that shoot with S-Log3 and S-Gamut3.Cine. These LUT’s were tailored for use with the FX3 and FX6 but will also produce great results with other Cinema Line cameras such as the FX9 and VENICE.

A7S3或FX3用S-LOG没有问题，但是A7M3的 8 bit的确有些压力大， 尤其如果是镜头素质不是特别好的话，更容易出现天空过渡色彩断层之类的问题。 画面我原本想压得更蓝更暗一点，但是断层更严重。

2022年5月18日 · 我們常說的 S-Log2 或是 S-Log3，指的是明暗對比度壓縮過後的模式，使用這一類色彩空間來拍攝，主要目的是為了容納在一定的進光量下、相機CMOS感光元件所能獲取的光線最大範圍，好防止一般色彩模式下容易發生的「過曝」或是「過暗」。

在暗部区域S-log3会快速提升，中间调也会亮于S-log2，亮部延展要更宽，因此在18%中性灰的色调下可以实现1.5档左右的动态范围延展，所以ISO 3200起跳是满足它的设计目的。

S-Log3: This is the recommended option for most situations. It delivers smoother gradations (transitions between colors and tones) in shadows and mid-tones, making it ideal for capturing natural-looking footage. S-Log3 also closely mimics the characteristics of scanned film, giving your videos a cinematic feel.

Sony 定义的log曲线称为S-Log，常用的有S-Log2和S-Log3版本，如下图所示。 S-Log2 最大可以支持14个stop动态范围，而S-Log3是面向未来的曲线，最大可以支持16个stop的动态范围。

那么怎么选择就很简单了，比如说我要拍的是一个 low key 画面，大部分东西都在 -1.5 档以下，那就是 S-Log 3 更好；或者我主要需要 -1.5～6.5 档，那就是 S-Log 2，超过 6.5 就是 S-Log 3，因为 S-Log 2 已经爆了。

2024年11月25日 · S-Log is a gamma curve with a wide dynamic range optimized under the assumption that grading will be performed in the post-production process. S-Log3 allows for better reproducing gradation characteristics in shadows and the mid-tone range than S-Log2. It has features closer to those of scanned film. Therefore, s-Log3 is

S-Log3的记录能力比S-Log2更大，大约是拓展了1.5档，覆盖了整个EI范围。 而在阴影部分，S-Log3拥有着比S-Log2更好的阴影对比度。 好了，你可以继续跳过了。