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