Cinematography

Aspect ratios

Frame shape changes composition, delivery, and how you write Imagine packets — from theatrical 2.39 to vertical 9:16.

Shape comparison

Tap a shape to open its full guide

Concepts

What aspect ratio is

Width ÷ height of the active picture.

Aspect ratio is the shape of the frame, not resolution. 1920×1080 and 3840×2160 are both 16:9. Changing ratio changes composition rules, not just crop bars.

Rule

Lock ratio in the DoP / Bible before bulk stills.

Studio tip

DoP “format” line should name one ratio for the project.

11 of 11 ratios

2.39:1
cinema

2.39:1

Epic horizontal · landscape · modern theatrical

Ultra-wide theatrical standard. Emphasizes environment, dual subjects, and lateral motion. Faces sit in a thin vertical band — headroom is precious.

Scope
Anamorphic widescreen
CinemaScope family

Compose

Use thirds horizontally; stack depth; avoid excessive empty sky; pair well with leading lines along the horizon.

Lighting

Practicals and rims read as horizontal streaks; neon alleys love this frame.

Imagine

Say “anamorphic 2.39 widescreen, cinematic still” in format/lens lines.

Avoid

Tall vertical subjects without environment; heavy top/bottom letterbox waste in prompts.

Studio use

Neon Courier DoP default feel · teaser plates · wide establishes

Packet crumb

anamorphic 2.39:1 widescreen cinematic still

Cheat sheet

Copy into notes or DoP format line

ASPECT RATIO CHEAT (Studio Academy)
Cinema: 2.39 scope · 1.85 flat · 1.37 Academy
Web/TV: 16:9 (1.78)
Photo: 3:2
Social: 1:1 · 4:5 · 9:16 vertical

Rules
1. Ratio = shape (width÷height), not resolution
2. Lock one primary ratio per sequence in DoP/Bible
3. Write ratio into format line of every hero packet
4. 9:16 needs its own composition — not a lazy center-crop of 2.39
5. Avoid baking letterbox bars into pixels
6. Multi-delivery: design for the strictest crop

Prompt crumbs
• “anamorphic 2.39 widescreen cinematic still”
• “1.85 theatrical flat, medium close-up”
• “9:16 vertical cinematic, mobile safe”
• “1:1 square centered portrait”