---
title: "TiffWriter.ExtraChannels Property "
canonical: https://www.graphicsmill.com/docs/gm/P_Aurigma_GraphicsMill_Codecs_TiffWriter_ExtraChannels.htm
product: "Graphics Mill"
---

# TiffWriter.ExtraChannels Property 
 
Gets or sets a collection of extra channels to embed into the image.
 
**Namespace:** [Aurigma.GraphicsMill.Codecs](https://www.graphicsmill.com/docs/gm/N_Aurigma_GraphicsMill_Codecs.htm.md)
 **Assembly:** Aurigma.GraphicsMill (in Aurigma.GraphicsMill.dll)
 
## Syntax
  
```csharp
public TiffExtraChannelCollection ExtraChannels { get; set; }
```
 
### Property Value
A [TiffExtraChannelCollection](https://www.graphicsmill.com/docs/gm/T_Aurigma_GraphicsMill_Codecs_TiffExtraChannelCollection.htm.md) to embed into the image.
 
## Examples
  
The following code reads a TIFF image, extracts an extra channel from it, and saves the channel's bitmap as a JPEG image.
 
```csharp
using (var reader = new TiffReader(@"Images\result.tif"))
{
    reader.Frames[0].ExtraChannels[1].GetBitmap().Save(@"Images\Output\extra.jpg");
}
```
   
## See Also

### Reference

- [TiffWriter Class](https://www.graphicsmill.com/docs/gm/T_Aurigma_GraphicsMill_Codecs_TiffWriter.htm.md)
- [Aurigma.GraphicsMill.Codecs Namespace](https://www.graphicsmill.com/docs/gm/N_Aurigma_GraphicsMill_Codecs.htm.md)