Best flashguns for nikon dslrs

Sigma EF-610 DG Super - £230/ $358

Sigma's latest flashgun edges ahead of the other models on test to give the highest-rated maximum power output in the group. Like the Polaroid, it has 0-90-degree bounce and 180-degree swivel to the left, but only 90 degrees to the right.

Unlike the Polaroid, the Sigma EF-610 DG Super boasts full wireless master/slave operation for multi-flashgun setups.

Onboard controls include direct access to +/-3 stops of flash exposure compensation, as well as manual power settings, going from full to 1/64. That's a stop less than most similar flashguns, which go down to 1/128, but at least the individual increments proved accurate in our tests.

Performance

There's a lot of punch, but from full-power flashes, recycling times are a disappointing eight or 10 seconds when using NiMH or alkaline batteries respectively. The Sigma unit also often underexposed shots in our tests when we used i-TTL flash metering, so we had to resort to flash exposure compensation more than we'd have liked.

The onboard menu system is a little confusing too - we needed the manual quite a lot.

Flash output

Best flashguns for nikon dslrs

The Sigma flash has the highest GN in the group, but power is quite lacking at the maximum setting. It also tracks fairly low throughout the manual range.

Aperture reading at 1m
Theoretical: 61
Measured: 32

i-TTL exposure accuracy

Best flashguns for nikon dslrs

A little on the dark side, the Sigma gives us -0.7EV flash exposures. This isn't as low as the results from the Metz and Nissin, but is still rather gloomy.

i-TTL exposure accuracy
Measured: -0.7EV

Colour accuracy

Best flashguns for nikon dslrs

The Sigma flash adds a touch of warmth to our colour rendition tests. Technically, results are poor for accuracy, but images look quite natural nevertheless.

Colour accuracy
Measured: 23

Image quality verdict

Best flashguns for nikon dslrs

Like the Metz and Nissin guns, the Sigma unit often gives underexposed results in i-TTL mode, and colour accuracy could be better.