focal-length-and-composition

name	focal-length-and-composition
description	Use when choosing focal length for shots. Focal length affects perspective, depth, subject prominence.

Focal Length and Composition

Wider focal lengths (16-35mm) = more environment, immersive. Tighter (50-85mm) = portrait flattering. Long (135mm+) = compression, dramatic.

Focal length applications

Focal length	Use
14-24mm	Architecture, wide environment, vertical mobile crop
24-35mm	Wide environment + subject, vlog
35-50mm	Standard, natural perspective
50-85mm	Portrait, talking head, flattering
85-135mm	Tight portrait, compression
135mm+	Wildlife, sports, dramatic compression

Vertical mobile considerations

For vertical 9:16 video:

• Wider focal lengths capture more vertically
• 24mm full-frame ≈ standard view in 9:16
• 50mm full-frame ≈ tight portrait in 9:16
• 16mm full-frame ≈ very wide in 9:16

Mobile creators often shoot 16-35mm for vlog content.

Crop factor

APS-C / Crop sensor cameras: multiply focal length by 1.5 Micro Four Thirds: multiply by 2.0 Full-frame: 1.0 (reference)

Example: 35mm lens on APS-C = 52.5mm equivalent. Different look from 35mm on full-frame.

Where this fits in the X3 empire

Focal length selection for CardPrepAI video composition.