Darren
Gear : Nikon Goodness
Website : http://www.peakactionimages.com
Please support Precious Hearts
Constructive Critique of my images always appreciated
Flash exposure metering is not tied to the lens electronics, it's tied to what is seen through the lens. It will only fail to work when you have the lens cap on
For manual flash, you have to use Trial and error (using LCD) and/or use a Light meter
Canon Flash exposure metering does not use spot metering, it only uses Evaluative or Average (different from the evaluative in exposure metering). Spot metering is for ambient light measures
Brodie Butler (Perth, WA)
Photographer / Filmmaker / Retoucher
Canon & Elinchrom user
Aperture = Guide Number divided by Distance
Distance = Guide Number divided by Aperture
So essentially if you meter the scene with the camera and then want to pop a small amount of fill flash in on manual, you would need to adjust your flash power and distance to suit the aperture you have chosen for the exposure of the scene.
Like Brodie said, with digital, just chimp. With practice, youll find you get pretty close off the bat.
Hi Im Darren
www.darrengrayphotography.com
SONY A850 (FF)] + GRIP | SONY A350 (APS-C) + GRIP | SONY NEX-5 +16 2.8 + 18-55 E-MOUNT LENSES | CZ 85 1.4 | 50 1.4 | 28-75 2.8 | 70-200 2.8 | 2 x 42AMs | 24" imac | LR | CS4 | + loads of other junk
Cheers Peter
Canon 7D...Canon 40D...Canon 24-70L 2.8...Canon 70-200L 2.8...Canon 17-85...Canon 50mm...Speedlights....Tripods...Filters... Battery grips.... And heaps of other stuff
There are always two people in every picture.. the photographer and the viewer.
The problem with using trial and error
to chimp the exposure is that it takes time, time which may not be available for professional type jobs. You also annoy the models too, making for worse expressions
chimping shouldnt take any longer than a couple of test shots when youre pretty close with your estimations already.