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The Sigma DP2x features a Foveon X3 sensor - this unique sensor features 3 layers of pixels on top of each other, meaning that every pixel on the sensor picks up Red, Green, and Blue colour information. The sensor is also APS-C sized, so should offer the same high image quality as Digital SLRs. We've taken a number of photos in the studio using JPEG and RAW settings to see how the camera performs under a variety of lighting conditions. You can view them here, more sample photos can be found in the full review of the Sigma DP2x.
The image above (from Sigma's website) shows how the Foveon X3 sensor differs from every other sensor out there, with the Bayer sensor on the right - the only other sensor to differ in the pixel arrangement is the Fujifilm EXR sensor. More information on the Foveon X3 sensor can be found on the Sigma website here.
Sigma DP2x Key Features:
- 14 megapixel FOVEON X3 direct image sensor (2,652× 1,768× 3 layers)
- SLR (APS-C) Size Sensor, 20.7mm x 13.8mm (slightly smaller than APS-C sized sensor (1.7x crop factor), larger than Micro Four Thirds), 3:2 aspect ratio
- 24.2mm f/2.8 Lens, equivalent to 41mm
- 2.5inch screen, 230k pixels
- AFE Analog Front End
- Improved Auto-Focus Speed
- RAW (X3F) and JPEG Support
- 3fps Continuous Shooting
- Flash hot-shoe
- Manual controls
- Manual focus
- Pop-up flash
- RRP: £619
- Lithium Ion Battery (250 shots)
- Sigma Photo Pro 5.0
- 113.3mm × 59.5mm × 56.1mm
White Balance Performance:
|Auto White Balance - Tungsten Light||Tungsten Preset - Tungsten Light|
|Auto White Balance - Fluorescent Light||Fluorescent Preset - Fluorescent Light|
ISO Noise Performance:
ISO50 - ISO800 are available in JPEG and RAW shooting, while ISO1600 and ISO3200 are available in RAW shooting only. JPEG shots come out as 2,640× 1,760 images that are between 1.7mb and 3.1mb, while RAW / X3F images are x and come out at between 12.9mb and 16.9mb. Click to view full size test images.
|ISO50 (JPEG)||ISO100 (JPEG)|
|ISO200 (JPEG)||ISO400 (JPEG)|
|ISO800 (JPEG)||ISO1600, JPEG saved from RAW, default settings.|
|ISO3200 JPEG Saved from RAW, default settings.|
RAW Images processed with Sigma Photo Pro 5.0: compared to JPEG images straight from the camera.
|JPEG Photo (4.6megapixel, default size)||JPEG from RAW (Auto adjust in SPP)|
|JPEG from RAW, Auto adjust, Saved as Double the size, making an 18 megapixel photo.||JPEG from RAW, Enlarged in Photoshop, Some adjustment, making an 18 megapixel photo.|
Read our full Sigma DP2x review, and if you have any questions you would like answering, please leave a comment below.