| 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.