---
title: kCMFormatDescriptionLogTransferFunction_AppleLog2
framework: Core Media
role: symbol
role_heading: Global Variable
platforms: [iOS 27.0+, iPadOS 27.0+, Mac Catalyst 27.0+, macOS 27.0+, tvOS 27.0+, visionOS 27.0+, watchOS 27.0+]
path: coremedia/kcmformatdescriptionlogtransferfunction_applelog2
---

# kCMFormatDescriptionLogTransferFunction_AppleLog2

Log Transfer Function identifier for Apple Log 2.

## Declaration

```swift
let kCMFormatDescriptionLogTransferFunction_AppleLog2: CFString
```

## Discussion

Discussion You can download the Apple Log Profile and Apple Log 2 Profile White Papers from the Apple Developer Downloads website.