Nikon Off Camera Flash - Athens Photography Guild
Transcription
Nikon Off Camera Flash - Athens Photography Guild
Off Camera Flash Nikon CLS / AWL Creative Lighting System / Advanced Wireless Lighting Benefits Channels (1, 2, 3, 4) for multiple photographers Groups (M plus A, B, and sometimes C) for up to four flash units/groupings Options of Manual or Auto Control: TTL, AA, GN Flash exposure compensation separate from background exp. comp. High speed sync Flash color communication (OEM filters) Under powered warning Pseudo modeling light Drawbacks Groups (if pointing at the same spot) don’t automatically compensate for each other Triggering is almost line of site - can sometimes bounce around a corner The larger the room the worse they work Limited distance, esp. outdoors Most light meters don’t work How it Works Commander gives a pre-flash that communicates with each group Each group separately fires and is noted by the camera Commander sends a signal telling what power to use Command From 3 Sources Command From 3 Sources Command From 3 Sources 3 Focus Assist 1 Sensor 2 Ready Matrix metering Flash snooted Set to TTL on the commander 0 compensation Demonstration 3 flashes set up around the room. 3 groups - how far can it be pushed? +++ Modeling Flash Other Triggers :: Dedicated Radio Canon and Nikon specific versions. Can use light meter. Versitile. Quality getting better. Nikon CLS Transmitted Through Yongnuo Transceivers 1) Yongnuo transceiver #1 in the hot shot of the camera, Nikon flash in Commander mode in the transceiver's hot shoe. 2) Yongnuo transceiver #2 set to Group A on a lightstand. Nikon CLS capable flash in TTL mode on that transceiver's hot shoe. 3) Put light stand behind our shed 40-50 yards away from the house. 4) Standing in my den I used the Commander flash on my camera to set the flash outside to Manual mode at 1/8th power. It wasn't enough power to see the burst of light hitting the tree I had the flash head aimed at, so using the flash on my camera I upped the power of the flash outside to full power. It worked. 5) Then to push it I walked to the opposite corner of my house (LR) and had my wife watch for the flash of light against the tree. She had no idea when I was pressing the shutter or test button, but called out every time I did either without fail. Other Triggers :: Radio Can use light meter. Needs a cord to connect to flash unit. Very reliable. Other Triggers :: Dedicated Light Triggers off any flash of light. Can use light meter. Shield to block pop up flash contribution. Other Triggers :: Built In SU-4 Triggers off of any flash of light verse CLS controlled which reacts only to Commander’s flash of light Other Triggers :: Light Peanuts Triggers off any flash. Can use light meter. Other Triggers :: Simple Cord