Sigma EF-500 DG ST review

A flashgun on a budget

TechRadar Verdict

The EF-500 DG ST might not have all the bells and whistles of the competitors but it produced reasonably precise exposures with auto fl ash and camera setting.


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    Poor performance

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The Sigma EF- 500 DG ST is the flashgun for those who think size matters. It has the largest dimensions on test and is sure to get users noticed when they're out and about. The budget price is matched by the plastic feel and lack of LCD display or control buttons.

It simply sports a flash test-button and a switch to select one of three modes. Plus points include the good lateral and vertical head movement, 28mm to 105mm zoom range and a 17mm angle of coverage when used with the built-in wide panel.

This flashgun punches above its weight (or price tag) registering just over f/8 at maximum power. However, users might have to accept a bit of colour shift from the highest and lowest power settings as it produced a cool 6500K reading at maximum power and more neutral 5950K on the minimum setting. was the former name of Its staff were at the forefront of the digital publishing revolution, and spearheaded the move to bring consumer technology journalism to its natural home – online. Many of the current TechRadar staff started life a staff writer, covering everything from the emerging smartphone market to the evolving market of personal computers. Think of it as the building blocks of the TechRadar you love today.