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DxO Labs and Phase One updated their image-editing programs this week, aiming to improve image quality and editing controls in an attempt to fend off market heavyweights Adobe Systems and Apple.

DxO Optics Pro 8 and Phase One Capture One Pro 7, like Adobe's Lightroom and Apple's Aperture, are designed in particular to handle raw photos from higher-end cameras, photos taken directly from the image sensor for higher quality, greater flexibility, but more hassle.

Among DxO Optics Pro's new features announced during the PhotoPlus Expo show in New York:

• A "Smart Lighting" control designed to … Read more

Canon's EOS 5D Mark III is a hot item in the camera world. It's the successor to the vaunted 5D Mark II, which ignited the video SLR revolution, but with better autofocus, shooting speed, and low-light performance.

Alas for Canon shooters, though, the 22-megapixel image sensor doesn't rate much better than the 21-megapixel one in the 5D Mark II that arrived more than three years earlier, according to tests by imaging technology DxO Labs.

DxO gave the 5D Mark III sensor a score of 81 on the DxOMark test of image sensor performance when shooting raw photos. … Read more

The Nikon D800 is the new king of the heap -- at least when it comes to DxO Labs' test of camera image sensors.

The new 36-megapixel high-end SLR got an all-time high score of 95 on the DxOMark test, which measures a variety of sensor attributes when shooting raw images. DxO Labs said it uses a sensor "with no weak points."

The score is a composite that reflects three attributes: dynamic range, which is the breadth of the span between an image's full black and complete white; color depth, which gauges the vividness and accurate color; … Read more

In a world overflowing with image-editing software, DxO Optics Pro is a shining star. The DxO online database allows users to select from any number of manufacturers' camera bodies and lenses, and then use the optical characteristics of said cameras and lenses to fine-tune their images and correct for the particular shortcomings on Camera X or Lens Y. That's definitely not something you see every day.

The program features a very intuitive workflow. Select, Prepare, Process, and Review modules separate the tasks most photographers will use to process their images, but the Process module is where DxO Optics Pro … Read more

DxO Labs announced a new version of its raw image editing software Tuesday that sports what the company says is a streamlined, more adaptable interface and an ability to extract a better ultimate image from those that begin with lots of noise.

DxO Optics Pro is designed for the sometimes laborious process of converting raw images that come from higher-end digital cameras into more easily viewed and handled formats such as JPEG. Although it takes work, using raw images can provide more flexibility and quality than using JPEGs straight from the camera--and with the new DxO Optics Pro, lower noise at high ISO settings, the company said.

Specifically, the noise reduction technology in DxO Optics Pro version 6 can reduce noise well enough to effectively give a photographer one more usable F-stop out of a camera than the previous version did, said Cyrille de La Chesnais, director of sales and marketing for photography at the Paris-based company. That means a photographer could shoot at a faster shutter speed or in dimmer conditions.

That can be useful especially with modern SLRs; Canon's 5D Mark II and Nikon's D700 can both shoot at an extreme ISO of 25,600, and Canon's new 1D Mark IV and Nikon's new D3S can shoot at a whopping ISO 102,400. The images are extremely noisy in those cases, but noise reduction can help extract a more useful image. However, raw processing software can be slow even on machines with abundant processing power.

Getting a one F-stop improvement means a photographer could use ISO 25,600 instead of holding the line at 12,800. Alternatively, for a camera such as Canon's G10 high-end compact that tops out at ISO 1,600, photographers can effectively shoot at ISO 3,200 by underexposing the image by a full stop then brightening it later in software. … Read more

A correction was made to this story. See below for details.

DxO Labs, a French company with deep experience measuring cameras' technical performance, has launched a Web site called DxOMark.com that features detailed information on the performance of the image sensor at the heart of many higher-end digital cameras.

Many Web sites and magazines measure camera image quality with varying degrees of rigor, typically examining either the JPEG that the camera produces or a processed version of the camera's raw. But with its DxOMark Sensor measurement, DxO takes a new approach by judging the sensor performance based on the unprocessed "raw" image file from higher-end cameras such as SLRs.

That's significant, because raw images typically must go through a conversion process called demosaicing before they're useful for viewing. Most digital cameras capture only a single color--red, green, or blue--for each sensor pixel. Demosaicing fills in the gaps in this colored checkerboard pattern so each pixel gets all three color components, but this processing stage can disguise sensor performance.

The detail-obsessed camera crowd has begun eagerly chomping on the new data. On Sunday, there were 220 mentions of DxOmark on the Digital Photography Review forums, a popular location for impassioned technical discussions.

New tests coming More measurements are coming, added Nicolas Touchard, vice president of marketing for DxO Labs' image quality evaluation business. First, in two or three weeks, will come measurements for medium-format digital camera sensors from companies including Hasselblad, Mamiya, Phase One, and Leaf. Then will come more high-end compact "bridge" cameras.

DxOMark Image Processing for the camera's computer, whose job it is to perform tasks such as converting raw images to JPEG, and DxOMark Optics for lenses.

The latter measurement will go beyond most lens tests by showing how well each lens works on each camera rather than one or two reference models. DxO takes that approach because lenses behave differently because different cameras have different attributes such as the geometry of the microlenses that help each sensor pixel gather more light, Touchard said.

DxO makes a business out of detailed measurements of camera performance, selling the data to camera and chip companies and incorporating it into its own DxO Optics Pro raw-processing software for photographers. So why give some of the data away for free on a Web site? Publicity.

… Read more