I have a friend/client who wants to use this Mac as a digital camera viewfinder...I think ideally he wants to be able to basically take a picture with his digital camera via his MacBook and have the resulting photo auto-submit to a form, but I don't think that's going to happen. So I'm trying to see if at least he can use his MacBook as a view finder. His camera is a Canon Power Shot A4000 IS. I know about the Image Capture software, but I personally haven't been able to use this successfully because my camera (a Sony) is only recognized as a USB device. (I don't have access to his camera.) Any thoughts?