Parade 示波器Parade Scope

难度LEVELL2 · 进阶L2 · Intermediate 领域TOPIC调色

先学：Prerequisites: 视频示波器

学习目标LEARNING OBJECTIVES

学完你能读懂 Parade 示波器的三通道波形，用它定位色偏（Color Cast）在哪一档亮度、偏什么颜色，并用色轮把白平衡修平。

概念说明CONCEPTS

Parade 示波器把红（R）、绿（G）、蓝（B）三个通道并排显示，让你一眼看出哪个通道"抢了戏"——它是修白平衡、查色偏的主力工具。三种示波器的分工见 视频示波器，这张卡只深挖它一个。

  • 三通道并排：从左到右依次是 R、G、B；每个通道内部仍是"横轴=画面左右、纵轴=亮度"，读法和 Waveform 一样。
  • 对齐即中性：红绿蓝等量混合才是无彩色——纯白处三通道顶端应平齐，纯黑处底端应平齐。
  • 不平即偏色：哪条通道在某段高度偏高，画面那一档就偏哪个色；高光的偏色看顶端，阴影的偏色看底端。
  • 单通道裁剪：某一条通道单独顶破 1023，说明该色高光细节丢失——整体亮度可能还"正常"，只有 Parade 看得出来。

操作步骤STEPS

  1. 在 Color 页面点 Scopes 按钮，下拉选择 Parade
  2. 找画面里应该是白色或浅灰的物体，看三通道顶端是否平齐检查高光处三通道对齐
  3. 顶端不平就用 Gain 色轮：把中心点拖离偏高的颜色、推向它的互补色，直到三通道顶端大致平齐
  4. 找画面里应该是黑色或深灰的物体，看三通道底端是否平齐检查阴影处三通道对齐
  5. 底端不平就用 Lift 色轮做同样的互补修正
  6. 回 Waveform 复查：修平白平衡后，确认整体亮度没有被带跑（见 波形示波器）

练习PRACTICE

  1. 找一段明显偏暖的镜头，只看 Parade 判断偏色主要在高光还是阴影，再动手修平并验证。
  2. 故意把 Gain 色轮拖向品红，观察绿色通道顶端与红、蓝拉开差距，然后点 Reset 复位。

常见问题FAQ

三通道顶端必须完全平齐吗？

大致平齐即可。而且前提是画面里存在真正的白物体——没有中性参照物时，顶端本来就不该对齐。

高光修平了，画面看着还是偏色？

那偏色多半藏在中间调或阴影里：中间调看波形中段、用 Gamma 色轮修，阴影看底端、用 Lift 色轮修。

日落、霓虹这类场景也要修平吗？

不要，那是创作意图，红色通道偏高是正常的。Parade 只负责告诉你"偏在哪、偏多少"，修不修由你判断。

Parade 和 Waveform 怎么分工？

Waveform 看整体亮度与曝光，Parade 看颜色平衡。常规顺序是先 Waveform 定曝光，再 Parade 修偏色（见 视频示波器）。

Learning Objectives学习目标

After this card you can read the Parade's three channels, locate which brightness band a color cast lives in and what color it is, and flatten white balance with the wheels.

Concepts概念说明

The Parade scope shows the red, green and blue channels side by side, so you can see at a glance which channel is "stealing the show" — it's your main tool for fixing white balance and hunting casts. For how it shares duties with the other scopes see Video Scopes; this card goes deep on this one.

  • Three channels side by side: R, G and B from left to right; inside each channel it's still "horizontal = frame left-right, vertical = brightness", read exactly like a Waveform.
  • Aligned means neutral: equal amounts of red, green and blue make a neutral color — at true white the channel tops should align, at true black the bottoms should align.
  • Uneven means cast: whichever channel rides higher at a given height, that's the color that band leans toward; read highlight casts at the tops, shadow casts at the bottoms.
  • Single-channel clipping: one channel alone punching past 1023 means lost highlight detail in that color — overall brightness may still look "fine"; only the Parade reveals it.

Steps操作步骤

  1. On the Color page, click the Scopes button and choose Parade from the dropdown
  2. Find something in the frame that should be white or light gray, and check whether the channel tops alignChecking channel alignment in the highlights
  3. If the tops are uneven, use the Gain wheel: drag the center point away from the high color, toward its complement, until the tops roughly align
  4. Find something that should be black or dark gray, and check whether the channel bottoms alignChecking channel alignment in the shadows
  5. If the bottoms are uneven, do the same complementary correction with the Lift wheel
  6. Recheck on the Waveform: after flattening the balance, confirm overall brightness didn't drift (see Waveform Scope)

Practice练习

  1. Take a noticeably warm shot, use only the Parade to decide whether the cast sits in highlights or shadows, then flatten it and verify.
  2. Deliberately drag the Gain wheel toward magenta, watch the green channel's top pull away from red and blue, then hit Reset.

FAQ常见问题

Do the channel tops have to align perfectly?

Roughly aligned is enough. And only if the frame actually contains a true white object — without a neutral reference, the tops shouldn't align in the first place.

Highlights are flat but the image still looks tinted?

The cast is probably hiding in the midtones or shadows: watch the middle of the traces and fix midtones with the Gamma wheel, watch the bottoms and fix shadows with Lift.

Should sunsets and neon scenes be flattened too?

No — that's creative intent, and a high red channel is correct there. The Parade only tells you where the cast is and how strong; whether to fix it is your call.

How do the Parade and Waveform split the work?

The Waveform reads overall brightness and exposure; the Parade reads color balance. The usual order is exposure on the Waveform first, then casts on the Parade (see Video Scopes).

本卡术语Terms in this card

Gain（亮部）Gain Gamma（中间调）Gamma Lift（暗部）Lift 示波器Scopes 白平衡White Balance 静帧Still