---
description: >-
  This block will output a json file containing a 3x3 intrinsic matrix (denoted
  as "K") and a 4x3 extrinsic matrix (denoted as "M").
---

# Camera Ex/Intrinsics

Note: Intrinsic matrices only apply to perspectival cameras, as fisheye lenses apply non-linear deformations.

<figure><img src="https://1909422608-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F4GudP3s7lhKkLuTADYnf%2Fuploads%2F5HB8SkxuIUoXEEMs670S%2Fimage.png?alt=media&#x26;token=7044ed27-8622-4cab-82fb-48f921b3c8c9" alt=""><figcaption></figcaption></figure>

Sample output:

```json
{
    "K": [
        [
            748.3882446289062,
            0.0,
            512.0
        ],
        [
            0.0,
            748.3882446289062,
            512.0
        ],
        [
            0.0,
            0.0,
            1.0
        ]
    ],
    "M": [
        [
            -0.9990010857582092,
            -0.04468803107738495,
            2.232832763127135e-08,
            -0.06156597286462784
        ],
        [
            -0.029656516388058662,
            0.6629711389541626,
            -0.7480574250221252,
            0.25449058413505554
        ],
        [
            0.03342919796705246,
            -0.7473101019859314,
            -0.6636340618133545,
            -0.015638599172234535
        ]
    ]
}

```

