---
title: "TiffEncoderOptions..::.ExtraChannels Property "
canonical: https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Codecs_TiffEncoderOptions_ExtraChannels.htm
product: "Graphics Mill 5.5 for .NET"
---

This documentation is for the old version. [Go to the latest Graphics Mill docs](https://www.graphicsmill.com/docs/gm/)

# TiffEncoderOptions.ExtraChannels Property 
 
Gets/sets the collection containing extra channels associated with the TIFF file. Using this property you can write some channels in addition to primary ones.
 
**Namespace:** [Aurigma.GraphicsMill.Codecs](https://www.graphicsmill.com/docs/gm5/N_Aurigma_GraphicsMill_Codecs.htm.md)
 **Assembly:** Aurigma.GraphicsMill (in Aurigma.GraphicsMill.dll)
 
## Syntax
  
```
Public Property ExtraChannels As TiffExtraChannelCollection
```
 
```csharp
public TiffExtraChannelCollection ExtraChannels { get; set; }
```
 
### Property Value
 [TiffExtraChannelCollection](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_Codecs_TiffExtraChannelCollection.htm.md) class instance that contains extra channels associated with the TIFF file.
   
## See Also

### Reference

- [TiffEncoderOptions Class](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_Codecs_TiffEncoderOptions.htm.md)
- [Aurigma.GraphicsMill.Codecs Namespace](https://www.graphicsmill.com/docs/gm5/N_Aurigma_GraphicsMill_Codecs.htm.md)

### Manual

- [Working with TIFF Extra Channels](https://www.graphicsmill.com/docs/gm5/WorkingwithTIFFExtraChannels.htm.md)