So conversation in another thread brought up a question. City Theatrical lists an AutoFocus unit an option to go with their Auto Yoke system. Given what i know about Auto Yoke units it seems to me that you wouldn't necessarily have to use the auto focus unit with the auto yoke. So two questions: First of all has anyone used an AutoFocus unit and if so what do you think about them. Second Am I right could you put it in a fixture that's not on an Auto Yoke just like any other DMX toys If anyone wants to know why this applies almost directly to the gaff method, as it would give you a dynamic focusing ability.