Hi all, l have a problem which l can't seem to work out. Other day l went down to take a few shots of my sons judo class.
My camera is a Canon 30D with a Canon flash 390EX, The lens I used my tamron 70-200 f2.8, First l used shutter mode then switched to AV mode and set it on f4.0 so as to get away from the f2.8 softness issue. Some of my pictures turned out great but the other half had skintones really warm, i.e. red faces, seemed under exposed. I had dialed in +1 flash exposure compensation so the white suits didn't fool the metering (I had it on partial mode) as spot metering I assumed would make the shots under exposed due to the reflection off their suits. shutter was 1/250th ISO was set at 100, so as get away from any noise issue.
The above formula I assed would have given me decent results but only half my shots were decent the other half had to be ligthened up through photopaint.
Any suggestions or ideas where l went wrong?