# Macro focus pull: change sharpness while the object stays still

Request one focus handoff between two visible depths while camera and object remain fixed. The original illustration is a conceptual macro input, not a tested H3 optical or lens-control result.

## Package and evidence

The first-frame SVG is original artwork authored for this task. The PNG is the raster upload derivative prepared during integration. Neither image is a model output. The illustration has no teaching text or arrows baked into the input.

Files: `first-frame.svg`, `first-frame.png`, `brief.en.json`, `brief.zh.json`, `checks.csv`, `README.en.md`, `README.zh.md`. The CSV result fields are intentionally blank; fill them from a clip you actually inspect.

## Prepare

1. Use a still with two identifiable features at different depths. The supplied ceramic sample has a near circular rim and a farther raised collar.
2. Start with the near rim sharper than the rear collar. If both features are equally crisp, deciding whether focus changed becomes less clear.
3. Keep a stable crop with a visible tabletop edge or shadow. These references help detect a camera push or object slide masquerading as focus.
4. Treat near and far focus as a visual instruction. Do not invent aperture, focus-distance or motor settings that the selected interface does not expose.

## Copyable prompt

```text
Use the uploaded macro composition. The ceramic sample rests completely still on the tabletop, and the camera position and framing stay locked. At first the near circular rim is sharp and the farther raised collar is soft. Shift focus slowly once from the near rim to the farther collar: the near edge gradually softens as the rear collar becomes clearer. Keep the sample outline, its two openings, surface ridges and contact shadow fixed throughout; blur changes clarity rather than reshaping the object. Finish holding focus on the rear collar. No camera push, no zoom, no object movement, no repeated focus hunting, no added detail.
```

## Run and inspect

1. **Choose two readable depth targets.** Identify the near rim and farther collar before running. Both must be visible; the prompt cannot focus on a hidden surface that the source never shows.
2. **Lock geometry and framing.** Name the object, camera and contact shadow as fixed. The intended change is relative sharpness, so do not combine the exercise with reveal, drift or push-in wording.
3. **Compare edge clarity at the same locations.** Take start, transition and end samples. Inspect the same rim edge and collar edge: near detail should soften as rear detail resolves, while the landmarks keep their positions and shapes.
4. **Reject sharpening by invention.** Check whether the final collar is clearer or newly redesigned. If ridges multiply or the opening moves, reduce the demanded focus contrast or choose a source with clearer rear structure before retrying.

## Acceptance

- Object position and framing remain fixed across the shot.
- The near rim is the initially sharper target.
- The farther collar becomes the sharper ending target.
- The clarity handoff occurs once without repeated hunting.
- The same rim, collar and openings retain their shapes and relative positions.
- The tabletop contact shadow stays attached without a sliding object.
- The end holds rear focus without a zoom or newly invented surface ridges.

## Change one variable per retry

- **The camera pushes in instead of changing focus:** Change only the camera instruction to locked position and framing; remove reveal or move-closer wording.
- **Both features remain equally sharp:** Change only the focus contrast to near sharp/rear soft, then near soft/rear clearer; retain the same static frame.
- **The rear collar changes shape as it sharpens:** Use a source with more readable rear structure while retaining the same focus path; sharpening cannot certify unseen detail.
- **Focus pulses back and forth:** Change only the ending to one handoff followed by a hold on the rear collar; remove breathing or looping focus language.

## Ending

End with the rear collar clearer and the original sample still in its starting pose. Save matched crops at both depth targets so a move or morph cannot be mistaken for focus.

## Intent evidence and boundaries

Historical parent queries below are literal entries in `docs/research/pseo-keyword-gap-2026-10-05/evidence/bing-live-keywords.csv`. This package claims no exact long-tail demand measurement or search volume. The owner plan at `docs/research/pseo-complete-plan-2026-10-09/keyword-owner-work.csv` assigns broad prompt-template intent to `/templates` and distinguishes complete task presets from prompt collections.

- `minimax h3 镜头特写提示词`
- `minimax h3 image to video`
- `minimax h3 camera commands`

A one-time near-rim to far-collar focus handoff on a stationary ceramic sample, keeping object landmarks and framing fixed as sharpness changes.

- `/blog/camera-movement-prompts`: The broad page explains camera motion; this task fixes camera position and instead tests a single focus transition using two depth-separated landmarks.
- `/blog/product-shape-consistency-video`: The exercise distinguishes blur from geometry changes with a supplied macro object, rather than repeating broad product-shape advice.

Keep the original source, your submitted prompt, the provider settings actually available to you and your observed checks together. This package does not prescribe hidden provider tokens, exact duration, cost or supported endpoint parameters.