Overall Rating:


Sigma dp2 Quattro

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Price as Reviewed:


The Sigma dp2 Quattro replaces the previous-generation DP2 Merrill, with a radically reworked sensor and strikingly unconventional body. In our Sigma dp2 Quattro review Andy Westlake takes it for a test drive


Sigma dp2 Quattro review – Autofocus

Sigma’s previous DP models haven’t exactly been known for snappy focusing – in fact, rather the opposite. Thankfully, the Quattro is distinctly improved in this respect, to the extent that the camera no longer feels like it’s holding you up as it homes in on the subject.

You can move the focus area freely around the central region of the frame, across about half the image’s width and height, or use a quicker-to-select nine-point mode. It’s also possible to change the size of the focus box in three steps, allowing precise focus on a specific subject, and face detection AF is also available.

Once light levels drop, the Quattro’s autofocus gets much less certain. It’s OK in a well-lit interior, but under domestic artificial lighting it’s really not very happy at all, and often fails to confirm focus.

In these cases, switching to manual focus may well be the most reliable approach. But here we’re also talking about situations where you’re likely to be shooting at high ISOs, which really isn’t the Foveon sensor’s forte at all.

Sigma dp2 Quattro review – Metering

The Quattro meters using the main image sensor and, like other cameras that employ this approach, it tends to give generally well-judged exposures. It also previews the exposure on screen and offers a live histogram while shooting. So when you do disagree with the camera’s judgement, it’s easy enough to apply a touch of exposure compensation using the rear command dial. For tricky lighting situations, you can also switch to spot metering using the QS menu.

Image: The lens’s f/2.8 aperture allows for shallow depth of field effects at close distances

  • External mic: None
  • Memory Card: SD, SDHC, SDXC
  • Output Size: 5424 x 3616
  • LCD: 3-inch, 921,000 dots, 4:3
  • AF array: Contrast Detection, 9-point and Free Move modes
  • Sensor: 19.5-million-pixel APS-C Foveon X3 Quattro
  • Weight: 465g (with battery and card)
  • Power: BP-51 rechargeable battery (2 supplied)
  • Lens: 30mm f/2.8
  • Shutter Speeds: 30-1/2000sec
  • ISO: 100-6400
  • Drive Mode: 3.5fps (4.5fps at low res)
  • Exposure Comp: +/- 3EV
  • Dimensions: 161.4 x 67 x 81.6mm
  • Video: None
  • RRP: £899

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