---
title: kIOVideoFeatureControlClassIDOpticalFilter
framework: Kernel
role: symbol
role_heading: Enumeration Case
platforms: [macOS 10.12+]
path: kernel/1646200-anonymous/kiovideofeaturecontrolclassidopticalfilter
---

# kIOVideoFeatureControlClassIDOpticalFilter

## Declaration

```occ
kIOVideoFeatureControlClassIDOpticalFilter = 'opft'
```

## Discussion

Discussion A IOVideoFeatureControl that controls chagning the optical filter of camera lens function. The units for the control's absolute value are are undefined.