Sigma SD15 review: Sigma SD15

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Typical Price: £800.00
3 stars

CNET Editors' Rating

5 stars 1 user review

The Good Chunky build quality; compatibility with over 40 Sigma lenses and accessories.

The Bad Very noisy results at higher ISOs; no live view capability; no video capture.

The Bottom Line The Sigma SD15 is an oddly eccentric fourth attempt at a high-end digital SLR by a manufacturer still better known for its accessories. Good results are achievable, but, by golly, you have to work for them.

6.5 Overall

Sigma is still better known for its lenses than its cameras. The SD15 digital SLR, an update of 2006's SD14, was announced almost two years ago. But it has only just made it to market, at a body-only price of around £800, which is usually the kind of news that sets alarm bells ringing. 

Strange goings-on

Another unusual aspect of this camera is its manufacturer's continued deployment of a 14-megapixel Foveon X3 CMOS sensor, which captures colour in a different way to conventional chips.

The SD15's feature set also feels curiously old-fashioned: there's no live view feature, allowing the 76mm (3-inch), 460,000-dot LCD screen to be used for shot composition; there's no video-capture capability; and there's no HDMI output either. Furthermore, although you can shoot JPEGs alongside raw images, you can't capture both in tandem. 

This close-up shot, taken with a 24-70mm f/2.8 macro lens, has a very narrow band of focus, lending the shot a deliberate abstract feel. The colours are particularly rich and expressive (click image to enlarge).

As a concession to modernity, Sigma has adopted SD and SDHC cards as its storage media of choice, and overhauled the user interface to make it more user-friendly. The dedicated 'quick set' button proves a godsend, allowing compression levels, white balance, picture settings and colour modes to be rapidly tweaked on the fly, without you having to delve into the more expansive menu screens.

That said, there isn't the usual array of point-and-shoot auto and scene modes crammed around the shooting dial -- just the creative quartet of program, shutter priority, aperture priority and manual. Thus the dial itself looks rather sparse -- incomplete, even.

This is perhaps because Sigma has provided a second drive dial, which, unusually, doubles up as the power switch, on the other side of the camera. You use this dial to swap between single shots and continuous capture (up to 3 frames per second for up to 21 raw files), 2- and 10-second self-timer options, mirror-up and auto-bracketing functions.

Get to the point

The SD15 offers a five-point autofocus system. That's not a patch on the 51-point offerings to be found among Nikon's semi-professional dSLRs. In fact, it's closer to the sort of spec you'd find at the entry-level end of the market. Unsurprisingly then, busier scenes can confuse the AF, and we often found the camera had chosen to focus on the background rather than the intended subject.

Two shooting dials sit atop the SD15's chunky frame.

Like its predecessors, the SD15 is a chunky, semi-professional beast with a dust-protected lens mount. At a body-only weight of 680g, it feels like it will withstand a few knocks with ease. Sigma boasts that its shutter is similarly durable, and can be used over 100,000 times. The camera's tank-like looks and brick-like weight, with the lens added, won't be to everyone's tastes.

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