I am trying to create an application that allows a user to take a picture from 
a camera device. I am usingImageCaptureCore.framework to do this by using the 
requestTakePicture method, and I've set a delegate to catch the 
didReceivePTPEvent message to tell me when the capture is complete.

If I try with my Canon PowerShot A80, didReceivePTPEvent is triggered, but when 
I use a Canon EOS Rebel T2i or any other professional camera device, 
didReceivePTPEvent is not triggered.

Does anyone know why didReceivePTPEvent is not triggered on some cameras?

Thanks for your help._______________________________________________

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