Review Light Quality

---
name: review-light-quality
description: Use when assessing the lighting conditions for a scene before shooting or planning a lighting setup
source: Joe McNally "The Hot Shoe Diaries" (2009), Bryan Peterson "Understanding Exposure" (2004), NYIP lighting curriculum
tags: [photography, lighting, light-quality, direction, color-temperature, hard-light, soft-light]
verified: true
---

# Review Light Quality

Assess the direction, quality, color temperature, and intensity of available light to determine its suitability or required modification.

## Why This Is Best Practice

**Adopted by:** Joe McNally's lighting methodology is used in National Geographic assignments and taught at the Santa Fe Workshops; NYIP curriculum is the standard for professional photography training
**Impact:** Bryan Peterson's research on exposure shows that photographers who pre-evaluate light before shooting make 3-5x fewer exposure adjustments and achieve technically correct exposure on the first shot more consistently

**Why best:** Light is the medium of photography — everything else serves it. Evaluating light before composing or exposing prevents unrecoverable errors: harsh midday sun creating unflattering shadows, mixed color temperatures creating color cast, backlight destroying detail. Evaluation takes 60 seconds and prevents hours of remediation in post.

## Steps

1. **Assess light direction** — Face the scene and identify the light source. Classify direction: front light (flat, shadowless), side light (reveals texture, drama), back light (silhouette risk, separation), overhead (harsh midday, unflattering for portraits), low angle (golden hour, long shadows).
2. **Evaluate hardness (quality)** — Hard light: small source relative to subject (direct sun, bare flash) — produces sharp, high-contrast shadows. Soft light: large source relative to subject (overcast sky, window, softbox) — produces gradual, low-contrast shadows. Hard is dramatic; soft is flattering.
3. **Measure color temperature** — Estimate or meter: golden hour = 2,000-3,500K (warm orange), overcast = 6,000-7,500K (cool blue), midday sun = 5,200K (neutral), shade = 7,000-9,000K (very blue), tungsten = 3,200K. Mixed sources (window + tungsten) require correction.
4. **Check intensity and dynamic range** — Evaluate the luminance ratio between the brightest and darkest areas of the scene. If the ratio exceeds the camera's dynamic range (~14 stops for modern sensors), decide: expose for shadows, highlights, or expose for a composite.
5. **Identify the quality modifiers in the scene** — Clouds, buildings, reflective surfaces, and vegetation all modify light. Identify any natural reflectors (white walls, sand) or diffusers (curtains, trees) available for free.
6. **Evaluate flatness or directionality for the subject** — For portraits: 45° side light creates Rembrandt or loop shadow, ideal for dimensionality. For products: soft, diffused front-side light minimizes harsh reflections. For landscapes: side light reveals topographic texture.
7. **Determine if light modification is needed** — If not shooting immediately: is the light improving (moving toward golden hour) or worsening (moving toward harsh midday)? Decide to wait, move, or modify.
8. **Set camera white balance** — Set WB to match the color temperature (Auto WB as fallback if shooting RAW; manual WB for predictable JPEG results). Note WB setting in the shot list for post-production consistency.

## Rules

- Never evaluate light from inside the camera — walk the scene and assess with your eyes before raising the camera.
- Overcast light is not "bad" light — it is soft, diffused, and ideal for portraits, macro, and product work; reserve judgment until the subject is considered.
- Mixed color temperatures from multiple sources cannot be fully corrected in post without secondary masking; prevent during shooting.
- Golden hour lasts approximately 30-40 minutes; never arrive at a golden hour shoot without the shot list finalized.

## Examples

Portrait session at 2pm: Direct sun is harsh (small source, high contrast, overhead angle). Options: (1) Find open shade — building shadow provides soft, diffused light. (2) Use a 5-in-1 reflector to bounce fill light into shadow side of face. (3) Add a strobe to overpower the sun at 1/200s + f/8, creating a controlled hard-light look. Evaluation takes 2 minutes; prevents 45 minutes of post-processing trying to fix hard shadows.

## Common Mistakes

- Evaluating light only through the viewfinder — the camera's LCD flattens light quality; walk the scene with your eyes first.
- Ignoring color temperature in mixed lighting — an orange tungsten lamp + blue window light produces a green cast in the midtones that no single WB setting corrects.
- Assuming overcast = bad — diffused overcast light is often the ideal portrait condition; missing it is a failure of light literacy.
- Not considering how light will change over the session — a 2-hour event shoot in afternoon will transition from harsh midday to warm golden; sequence shots accordingly.

## When NOT to Use

- When shooting in a fully controlled studio with all-artificial lighting where ambient light is irrelevant and every light source is metered directly.
- When the creative intent is deliberately harsh, flat, or unconventional lighting and evaluating "suitability" would override the intentional aesthetic choice.
- When shooting fast-moving documentary or street photography where pausing to evaluate light loses the decisive moment.