This is a little old (Jan 2013), but I thought this was interesting. It definitely gives me more appreciation for my Lumia's camera (even if it doesn't really have zoom or HDR).
One the shortcomings of the Lumia camera is definitely the default camera app. A great replacement is Proshot. It gives you a great HUD and interface to access to all of the camera settings available for your specific hardware. It's free to try and $1.99 to buy. (Of course, after the "amber" update we'll get the 1020's camera app, and it's actually got a better interface than Proshot. It's still worth recommending though).
(Watch in 1080p)