Sigma EF-610 DG ST
Make: Sigma
Web site: Electronic Flash EF 610 DG ST
Manual: PDF

Relative Power @ 50mm1: 2.4×
Relative Coverage2: 2.6×

Key Features: tilt/swivel/zoom reflector

Reasons to Buy: A lot of power for the money.

Notable Drawbacks: Neither advanced features nor much by way of manual control.


Sigma's basic model. Quite a lot of power but entry-level price. There's no wireless, high-speed sync, or even rear-curtain flash. Manual power control is limited to full or ¹⁄₁₆th power, and the zoom can't be controlled manually at all. The zoom reflector pattern is odd — the flash outstrips the competition at wide angle and when zoomed to above 50mm (35mm "full-frame" efl), but not at moderate wide-angles.

More about the Sigma EF-610 DG ST can be found on these pages:


Flash Power


Including an Amazon link on this page is the easiest way to display the current prices, without having to keep track of it manually or write a more-complicated tracking script. And as a bonus, there's a picture of the flash. Obviously, the ad is also an affiliate link. As with all advertising on this site, I hope it's not too obnoxious.

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