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# unsupportedCaptureOutputClasses

The list of capture output subclasses not allowed for capture with this format, if any.

```
var unsupportedCaptureOutputClasses: [AnyClass] { get }
```

## Discussion

As a rule, capture formats with a given [`mediaType`](/documentation/AVFoundation/AVCaptureDevice/Format/mediaType) are available for use with all [`AVCaptureOutput`](/documentation/AVFoundation/AVCaptureOutput) subclasses that accept that media type. However, this isn’t always the case. For example, formats for high-resolution photo capture may not support the [`AVCaptureMovieFileOutput`](/documentation/AVFoundation/AVCaptureMovieFileOutput) class due to bandwidth limitations.

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