The mirada smartCAM has several functions which will aid you in doing a variety of things with your Second Life camera:

Share Your View
Using the included Camera, ParentHUD and ChildHUD (copy/trans), you can allow other SL users to see what you are seeing. This is particularly useful for directing machinima, plays, enjoying a sunset or sharing something funny you've found.
Save Your View:
You can save up to 7 camera positions! Use them to set up a shot, keep and eye on your club or store or share your favourite scenic views of a sim.
Enhance Your View:
The mirada smartCAM has built in options to help you set up a specific 4:3, 16:9 or superwide shot. You can either apply the effect to your HUD (so only you see it) or to the camera, so all can see the boundaries of your shot!
Lifetime Updates!
As always, I am available to answer questions and provide support, enjoy!
You can find the smartCAM on https://www.xstreetsl.com/modules.php?name=Marketplace&file=item&ItemID=1656811 or inworld at http://slurl.com/secondlife/Hairspray%202/237/178/52!