dx

DxO Labs has named Samsung's Galaxy S4 a new winner in its mobile-phone camera tests.

The French firm, which specializes in camera optics and image sensor analysis, gave the new Android phone a score of 75 this week, edging out the iPhone 5 at 72. The top scorer is the Nokia 808 Pureview at 77, but that model is hobbled by its Symbian operating system, a commercial failure compared to Apple's iOS in the iPhone and Google's Android in the Galaxy S4.

Perhaps Nokia will have better commercial success with its rumored "Eos" phone, which … Read more

You take a seat. The lights go dark. Tony Stark struts across the screen. What's that smell? It's Eau de Iron Man! That's what I imagine the experience will be like when "Iron Man 3" debuts in 4DX in Japan this year. The 4DX format aims for a more interactive experience than just sitting in your seat, passively absorbing a movie through your eyes and ears.

The 4DX format adds odd gadgets to the theater setting, such us tilting seats, bubble makers on the ceiling, fog, wind, strobe lighting, and odor effects (Smell-O-Vision!). It's like some mad scientist got ahold of a Regal cinema and went nuts customizing it. Naturally, 4DX theaters have to be specially equipped to handle all the extras.… Read more

Aiming to make it easier for photography enthusiasts to evaluate photo gear, DxO Labs today announced a new method of measuring lens sharpness it hopes will make more intuitive sense.

The idea, called the perceptual megapixel, shows how much of a camera's original sensor resolution a particular lens can preserve when factors such as lens sharpness, optical defects, and sensor pixel size are taken into account.

One example the company provides: on a 21.1-megapixel Canon 5D Mark II, the Sigma 35mm F1.4 DG lens gets a score of 17.2 perceptual megapixels and the much higher-priced Carl … Read more

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

Amazon seems to have pulled the plug on its Kindle DX.

A peek at the product's Web site shows that Amazon is no longer directly selling the DX. Only used versions are up for grabs from third-party resellers, at prices ranging from $230 to $350.

The DX also is missing from the Kindle family lineup. The e-book reader's heave-ho comes about a week after Amazon cut its price to $299 from $379, according to blog site The eBook Reader.

There's no indication from Amazon as to whether new supplies are on their way. But it's unlikely. … Read more

BOULOGNE BILLANCOURT, France -- So you think you're a camera expert? Well, when was the last time you evaluated a camera by spending days analyzing hundreds of test photos?

That's what DxO Labs does, over and over, publishing results so far for 185 cameras on its DxOMark Web site. To see what lies behind those performance scores, CNET visited the company as it put one hotly anticipated camera through its paces: Canon's hot new video-capable SLR, the EOS 5D Mark III.

The results might not surprise close watchers of the camera business: Canon's score of 81 … 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

Western Digital announced today the WD Sentinel DX4000 NAS server for business environments.

The new four-bay server runs the Windows Storage Server 2008 R2 Essentials operating system on an Intel D525 Dual Core Atom processor.

Windows Storage Server 2008 R2 is superior to the current version of Windows Home Server and offers support for RAID configurations and iSCSI, which allows a portion of the network storage to be used by a computer as if it were a local drive. Because of this, the WD Sentinel DX400 supports RAID 1 and 5.… Read more