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Nikon D90
Nikon AF-S Zoom-Nikkor 24-120mm f/3.5-5.6G IF-ED VR
 06/02/2011 03:16:15 PM · #1
I've been all over the fourms, and still can't find a thread with suggestions for this:
I got talked into shooting Another outdoor wedding. This one is going to be at sunset. SOOOOOO I am going to need fill flash,... How do you meter for what power you might want? I shoot Nikon D90's and a Sigma EF-530 DG st flash, the setting on the back are limited, TTL, Mh and ML, .. So lets say I have the Bride and I can shoot her at 200, (max the d90 will sycn to flash) and an apt of F 6.3.. If I leave the TTL on will it adjust the light for her face if I am focusing on her face and have spot metering on? And if not How do I know if I need to adjust the Flash power up or down with out snapping one and checking the histogram? I have books n books on flash and have never found the answer to: How to adjust for perfect exposure using fill Flash....

Any suggestions or point me to the fourm that has this discussion in it.. THANKS
Canon EOS-5D Mark II
Carl Zeiss 50mm ZE f/1.4 Planar T for Canon
06/02/2011 04:21:22 PM · #2
It's been some time since I've used TTL so there may be a better way of doing it, but if it were me I would be shooting it all in manual. Assuming the subjects are standing with their backs to the sunset this is how I would do it:

1. Meter the couple so you get your f-stop (while popping your flashes).
2. Using the same ISO you used above meter the ambient (incident reading) to get your shutter speed.
3. Now adjust the ambient settings your meter gave you so that it corresponds to the same f-stop you were given in step one.
4. Enter those settings in manual mode with the camera on a tripod. I would suggest also bracking your shots to give you some added flexibility for adjustments later, if needed.


Nikon D90
Nikon AF-S Zoom-Nikkor 24-120mm f/3.5-5.6G IF-ED VR
 06/02/2011 04:54:58 PM · #3
Thanks Richard,
The only thing I'm not quite sure I understand what you mean is the 1. (while popping your flashes) ???

Everything else I totaly understand and went wow sounds ez.. I always shoot manual so I can fix those little things that maybe weren't quite there.. Thanks sooo much for this info!!!
Canon EOS-5D Mark II
Carl Zeiss 50mm ZE f/1.4 Planar T for Canon
06/02/2011 05:05:38 PM · #4
Originally posted by littlemav:
Thanks Richard,
The only thing I'm not quite sure I understand what you mean is the 1. (while popping your flashes) ???

Everything else I totaly understand and went wow sounds ez.. I always shoot manual so I can fix those little things that maybe weren't quite there.. Thanks sooo much for this info!!!


It just means that you're metering only for the flash so make sure you're triggering them in step one. In step two they should be off. Btw, when I wrote that I had assumed you would be using a light meter but after re-reading your post you never did say you had one. You'll just have to do some test shots using the flash to get the f-stop if you don't have a light meter or use TTL.

Message edited by author 2011-06-02 17:18:29.
Pentax K-R
Promaster 28-200mm f/3.8-5.6 XR IF
 06/02/2011 07:39:28 PM · #5
This guy has 2 or 3 great articles that should help you out.

Flash + Ambient Light

Flash Outdoors

Dragging the Shutter

Take a look at his other articles in the blue section on the right hand side.

Tim
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