# 2:1 (Univisium)

Frame / Aspect ratio / Cinema. Checked 2026-11-13.

Wide but not epic: a modern series and streaming frame.

- Use when: Premium social ads that letterbox on a phone, series-style brand films.
- Phrase: 2:1 frame, black bars at top and bottom of a 16:9 video
- Page: https://directorchair.ai/ratio/ratio-2-00
- JSON: https://directorchair.ai/api/ratio/ratio-2-00.json

## Watch out

- Generate 16:9 and crop to 2:1 in the edit; keep heads clear of the top eighth of the frame. (practitioner; Director Chair field notes on video prompting)

## Prompts

### Nano Banana Pro

```
[your subject] in [your setting]. 2:1 frame, black bars at top and bottom of a 16:9 video.
```

### Nano Banana 2

```
[your subject] in [your setting]. 2:1 frame, black bars at top and bottom of a 16:9 video.
```

### GPT Image 2.5

```
A photograph of [your subject] in [your setting].
People and framing: 2:1 frame, black bars at top and bottom of a 16:9 video
Exclusions: no extra text, no watermark, no logo.
```

### Seedream 5

```
[your subject] in [your setting]. 2:1 frame, black bars at top and bottom of a 16:9 video.
```

### Seedance 2.5

```
Scene: [your subject] in [your setting].
First frame: 2:1 frame, black bars at top and bottom of a 16:9 video
Shot 1 (0:00 to 0:05): one continuous shot
```

### Seedance 2.0

```
Scene: [your subject] in [your setting].
First frame: 2:1 frame, black bars at top and bottom of a 16:9 video
Shot 1: one continuous shot
```

### Kling 3.0

```
[your subject]. The scene is [your setting]. 2:1 frame, black bars at top and bottom of a 16:9 video.
```

### Veo 3.1

```
2:1 frame, black bars at top and bottom of a 16:9 video. [your subject] in [your setting]. Framing and subject stay as in the start image.
```

## Look further

- https://shotdeck.com/ : real film examples of this aspect ratio (paid, link only)
- https://flim.ai/ : film, ad and music-video stills of this aspect ratio (free tier, link only)

## Goes well with

- 16:9 landscape: https://directorchair.ai/ratio/ratio-16-9
- 21:9 ultrawide: https://directorchair.ai/ratio/ratio-21-9

## Source

Own words; the term from general film vocabulary, as also used in Flim's filters (its ratio filter, which also lists 2.20)

Text CC BY 4.0, Director Chair (directorchair.ai). Reference clips and their card texts belong to their makers.