Framing, aspect ratio and where the eye lands
Aspect ratio is a compositional decision the model reads, not a crop applied at the end.
The ratio changes the picture
Aspect ratio is passed to the model before it renders, so it shapes what gets generated rather than trimming it afterwards. The same prompt at 2:3 and at 16:9 produces genuinely different images: the portrait fills the height with the subject, the widescreen version invents environment on either side to fill the space.
- 2:3 — single figures, portraits, anything where height is the subject.
- 1:1 — objects, icons, tight character studies with no environment to justify.
- 3:2 — the default photographic frame; a subject with room to breathe.
- 16:9 and 21:9 — landscapes and establishing shots. Expect the model to invent scenery.
- 9:16 — vertical video and phone-first stills.
Say where the camera is
Without a stated shot distance most models default to a mid shot, roughly waist up, subject centred. If you want anything else you have to ask. Shot distance and camera height are two short clauses that do more for a composition than any amount of style vocabulary.
Close-up of a weathered cartographer's hands pinning a chart to a table, shot from just above the table surface, lantern light raking across the paper, shallow depth of field, 85mm
Shot distance, camera height, light direction and lens — four clauses, one clear image.
Motion in video is prompt text
The camera control in the video composer works by adding a sentence to your prompt, which means you can write the same instruction yourself and be more precise than the preset list allows.
Describe one movement per clip. A prompt that asks for a slow push in, a pan left and a rack focus in five seconds will usually produce none of them cleanly.
Worth remembering
- Aspect ratio is sent before rendering, so it changes the composition rather than cropping it.
- State shot distance and camera height explicitly or you will get a centred mid shot.
- Camera presets are just prompt text, so write the movement yourself for more control.