Common formats
| Name | Pixels | Aspect | Typical use |
|---|---|---|---|
| HD 720p | 1280 × 720 | 16:9 | Low-bandwidth streams |
| Full HD 1080 | 1920 × 1080 | 16:9 | Broadcast HD, most streams, OBS default |
| UHD 4K | 3840 × 2160 | 16:9 | UHD broadcast, YouTube 4K |
| DCI 4K | 4096 × 2160 | 1.9:1 | Cinema cameras |
| Vertical HD | 1080 × 1920 | 9:16 | Reels, Shorts, TikTok |
| Square | 1080 × 1080 | 1:1 | Social cut-downs |
Frame rates
Europe and most of Asia broadcast at 25 or 50 fps (50 Hz mains). North America and Japan use 29.97 or 59.94. Match your graphics and loops to the programme rate. A 25 fps loop played in a 29.97 timeline will judder.
LED wall calculator
Rule of thumb: the minimum distance in metres is roughly the pixel pitch in millimetres; about three times that looks clean on camera. Moiré also depends on lens, focus and sensor, so always test-shoot.