Be more centred
For off-centre portraits, zoom in and fill as much of the central region of the frame as possible with the subject’s face, then press the Flash value lock button before zooming out and recomposing the shot to avoid flash exposure inaccuracy.
After a flash, most flashguns recycle to a state of readiness more quickly if fitted with NiMH rather than alkaline batteries.
Some flashguns have a power input socket for connecting an optional external power pack. This lets you shoot for longer before needing to swap batteries.
The Gloxy, Nissin MG8000 and both Nikon flashguns on test come with diffusion domes, which soften the light. For other makes and models, domes like the Sto-Fen Omni-Bounce are available separately.
The repeat, or strobe, feature available in some flashguns enables the flash to fire several times within the same exposure, for example plotting the progress of a bouncing ball.
Flash modes like red-eye reduction, slow-sync and rearcurtain, as well as flash exposure compensation, can be adjusted via controls on the camera body.
Flash exposure compensation only alters the strength of the flash and therefore works independently of the camera’s regular exposure compensation. Use both to fine-