title: Create a CI Filter Chain
body: <p>How do I get combine GI Filter effects. I would like to combine CISepiaTone with CIPhotoEffectMono. Currently I have something like this for a filter.</p>
  
  <pre><code>case 1:{
          filter = [CIFilter filterWithName:@"CISepiaTone" keysAndValues: kCIInputImageKey, beginImage, @"inputIntensity", [NSNumber numberWithFloat:0.8], nil];
          break;
  }
  </code></pre>