In this video tutorial we look at using the different types of Cameras available, using a Camera to position your world in a device independent way. Next we discuss the various Viewport options available for making your render results look best across a number of devices. Since this video was released at the same time as the text version of the tutorial, I will be linking to those tutorials for code examples.
You can see the full 1080p video directly on YouTube or embedded below.
For the text tutorials, or for the code or assets used in this tutorial, check this tutorial on Cameras and this tutorial on Viewports.
Additionally, the text only tutorial also covers converting coordinates too and from your world coordinates, something I forgot to do in the video tutorial.