# usePhysicalProperties

> Enable usePhysicalProperties to use physical camera properties to compute the field of view and the frustum.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine](/engine/6000.7/script-reference/unityengine.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
public bool usePhysicalProperties { get; set; }
```

### Remarks

The physical properties include the sensor size, lens shift, and focal length.

### Examples

```csharp
using UnityEngine;

public class ExampleScript : MonoBehaviour
{
    void Start()
    {
        Camera cam = gameObject.GetComponent<Camera>();
        cam.usePhysicalProperties = true;
        cam.focalLength = 60f;
    }

}
```