User manual POCKETWIZARD AC9 QUICK GUIDE

[. . . ] Prepare your flash: Turn on the modeling light and set it to Cycle or Ready mode as desired. Disable the optical slave by inserting a plug or adapter into the sync port. Slide the AC9 onto your remote FlexTT5 and connect the REMOTE cable from the AC9 to the flash. On the FlexTT5, set Zone A, B, or C with the Zone Switch. [. . . ] Zero (0) on the AC3 Power Dial is centered on the aperture and ISO used for your first picture. For example, if your first picture is at ISO 200 and F:8, then those values will be used as the center point for PowerTracking which is 3 stops down from your flash's maximum output power. Follow these steps to set the aperture and ISO values that will be used as the center point: 1. Turn on your camera and MiniTT1 or FlexTT5, but wait to press your shutter button or take any pictures. Set the aperture and ISO you wish to use at the center point. Set the shutter speed as desired, however changes to shutter speed will not affect PowerTracking. Press the shutter button to take a picture. Adjust your camera's ISO, aperture, or FEC to control flash output from the camera automatically via PowerTracking. To change the values used for the center point, turn off your transmitter then turn it back on and follow these steps again. Set the AC3 zone to Manual Mode to turn off PowerTracking. Center on ISO & Aperture with First Shot is the default operation. For more information, see the PocketWizard Utility section on adjusting this setting via the PowerTracking Tab for your transmitter. IMPORTANT NOTE: Shooting in Shutter Priority/Tv, Program, Full Auto, or shooting quickly or making rapid exposure changes is not recommended. The flash values may change rapidly and your remote flash may not be able to keep up. Honor your flash's ready wait time or "dump" as necessary. FEC NOTE: Flash Exposure Compensation (FEC) can be set in many places and all values are added together. FEC can be set: · On the Power Dials of the AC3 ZoneController · On the camera for all zones except AC3 Manual zones · For transmitting radios, the PocketWizard Utility can adjust the PowerTracking center point for ISO and aperture which affects all zones · For a receiving FlexTT5 with an AC9, the PocketWizard Utility can adjust FEC for the directly connected flash on the PowerTracking tab If the combined FEC settings are more or less than your flash's capabilities, then the flash will operate at maximum or minimum output accordingly. CAMERA FEC RANGE: The center point for PowerTracking is 3 stops down from your flash's maximum, so normally +3 on your camera's FEC would equal flash maximum power. If your camera has a maximum FEC of +2 stops, and you want that setting to equal your flash's maximum output, set Flash Exposure Compensation on your remote FlexTT5 receiver with AC9 attached to +1. 0. When you have made this setting, Zero (0) on your camera's FEC will now be 2 stops down from flash max instead of 3. If your camera's highest FEC is +1, set this control to +2. 0. You can use this control to align your camera's lowest FEC setting with your flash's minimum power similarly. See the AC9 Flash Exposure Compensation in the FlexTT5 Receiver settings section below for more information. PocketWizard Utility Some settings require the PocketWizard Utility software and your ControlTL radio connected to a computer via the Mini-USB port. [. . . ] Canon: With no AC3 ZoneController on the transmitter, the camera's ISO and FEC controls will adjust flash power output level. Center on ISO & Aperture with First Shot: The aperture and ISO as set on the camera for the first exposure after powering on the MiniTT1 or FlexTT5 will be used as the center values for PowerTracking. For example if your camera is set to ISO 100 and F:5. 6 for its first exposure, then those exposure settings will equal 3 stops down from your flash's maximum output power. Adjustments to aperture, ISO, and FEC will adjust flash output power accordingly, as will adjusting the Power Dial on AC3 zone in Auto Mode. [. . . ]