One of the new guns, the Macro Twin Flash 2400, has two heads that can be attached at various angles and rotated around the lens. The heads can be individually adjusted so that lighting ratios can be controlled for optimum lighting. It's combined with a flash controller to allow 7-step power level control and offers TTL control using Minolta Dynax cameras. The unit has a guide number of 24 when both tubes are used and 17 using one.