Access camera

Hello, I'm new to the Xamarin platform. I'm trying to look for accessing the camera from a button click. Currently I'm working on iOS but I'm using Xamarin.Forms so wondering if there is a crossplatform way to access the camera? Not seeing anything here: http://developer.xamarin.com/recipes/ios/media/video_and_photos/

I saw an Android example but that's Android and I'm curious where an iOS one would be or ideally a crossplatform one if it exists.

Thank you,
Rick