Post-Processing Workflow Quiz: Masterclass Lesson 11

Non-destructive editing preserves the original file by storing all adjustments as instructions applied on top of it rather than baked into the pixels. Every change remains fully reversible, and the original can be restored or re-processed from scratch at any time.

Global adjustments correct the overall exposure, color, and contrast of the image first, establishing the correct foundation. Local adjustments then refine specific areas. Working in reverse, fixing local problems before the global balance is right, means repeating the local work after any global change.

A 10 to 20 percent selection rate concentrates editing effort on the frames most worth processing. Culling to this level requires honest assessment of every frame, which builds the critical eye needed to understand what distinguishes a strong image from an adequate one.

Over-saturation is the most common editing mistake: pushing colors so far that skies turn electric and skin turns orange. It makes images look artificial and loses subtle tones. A light touch with saturation, or using vibrance instead, keeps colors believable.

Color grading is the creative step of shifting color tones in the shadows, midtones and highlights, for example cool shadows and warm highlights. It sets a mood or look after basic color correction is done. Converting color spaces for print is a separate technical step.

Vibrance raises the intensity of muted colors more than colors that are already strong, and it protects skin tones. Saturation boosts every color by the same amount, so strong colors can clip and skin can turn orange. That is why vibrance is the gentler choice.

When images in a set vary widely in color grading, contrast, or tonal style, the viewer perceives them as a collection of unrelated photographs rather than a coherent body of work. Consistent treatment ties them together and reinforces the visual identity of the series.

When a red subject and a green subject of similar luminance are both desaturated, they convert to nearly the same shade of gray because the conversion weights only their brightness, not their hue difference. Color-specific mixing controls allow the photographer to assign different tonal values to different hues.

Overdone HDR compresses the brightest and darkest tones toward the middle. That removes the natural relationship between light and shadow, so scenes look flat, gray and processed, often with halos around edges. Used lightly, HDR can still look natural.

When a camera saves a JPEG, it processes the raw sensor data first. It applies its own sharpening, saturation, contrast and noise reduction, sets white balance, and then compresses the file. A raw file skips those choices and leaves them for editing.