3D models of entire buildings can be created with Autodesk’s software featured in this week’s Personal Technology column, but for another way of literally capturing the world around you without any photostitching, I have been trying Kogeto’s Dot, the world’s smallest panoramic video camera accessory.

Available in Apple Stores this month and online at Kogeto.com for $79, it works only with the iPhone 4 and 4s currently. A plastic clip fixes the Dot securely over the camera lens of the iPhone, adding a semispheric lens and mirror combination, known as a catadioptric optical system. Read more