# `CameraLens.fovDeg`

> Contract 2.0.0 · package sha256 `a857eca95b35921109faf997094bb4192f12527d9d0fcd4be7e97f06425bad6e` · generated from `configurator-runtime.d.ts` by `services/onsite-scripter/scripts/build-contract-docs.mjs`; edit the source, not this file.

Property of [`CameraLens`](CameraLens.md) · stable · since 2.0.0

```ts
fovDeg?: number;
```

Vertical field of view. A layer or call that sets only `fovDeg` switches to a fixed vertical field of view.

**Default:** derived from [`horizontalFovDeg`](CameraLens.horizontalFovDeg.md) at the element's aspect; with the default lens after a `fit`, a portrait element's (narrower than tall) at most 45 at the fit, and after it never so small that the horizontal one drops below the fit's (spec 5.6)

## Generic-API test (spec 3.1)

| Rule | Result |
| --- | --- |
| 1. Neutral name | pass: `fovDeg` names no product |
| 2. A precedent | pass: [Unity Camera.fieldOfView](https://docs.unity3d.com/ScriptReference/Camera-fieldOfView.html) (row `K40`); [Unity Camera.lensShift](https://docs.unity3d.com/ScriptReference/Camera-lensShift.html) (row `K40`); [Babylon.js ArcRotateCamera limits](https://github.com/BabylonJS/Babylon.js/blob/master/packages/dev/core/src/Cameras/arcRotateCamera.ts) (row `K40`) |
| 3. Two apps, or labs | pass: 26 apps (ledger: app-378d190f1b, app-59c5b5751e, app-b4ae2fce25, app-bcb7ef21da, app-ddfb017681, app-e3b47169bc, app-e61a0b42ad, app-fd09090420; fleet cross-check: app-04c2774145, app-378d190f1b, app-4762caacdc, app-4f16d2f6da, app-4fd23bc869, app-510d750508, app-59c5b5751e, app-822bb9d6aa and 18 more) |
| 4. The cheaper fix first | decided per need in Appendix B: rows `K40` at tier stable (a member only where no rule, data, asset or app code serves the need) |