Yes, it's sort of an infomercial for Tamron's 150-600 mm lens, but Erik Stensland does a terrific job of taking you through so many of the features. And, you can learn a lot watching another artist shoot.
I especially liked his opening line about "I was on a blue sky day today and wondered what in the world am I going to shoot?" We've all been there, searching to find those scenes that set our creativity on fire. Click on the screenshots from the video above to visit Erik's website and see more of his work.