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Phase One takes lead in camera sensor test

Medium-format digital cameras, which have larger sensors and higher price tags than even high-end SLRs, didn't fare so well in earlier tests of sensor quality by measurement firm DxO Labs, but Phase One's newly tested top-end technology has risen to the top of the DxOMark Sensor test.

Phase One's 60-megapixel P65+ camera scored 89.1 on the test, edging out the Nikon D3X, which scored 88, according to data released Thursday. In addition, the 51.7-megapixel Hasselblad H3DII 50, an older model than Phase One's, scored 78.2. Click here to compare the two models and Nikon's D3X.

The DxOMark sensor test measures a camera sensor's dynamic range, color depth, and low-light performance. DxO Labs cautions that differences of less than 5 points aren't really distinguishable, and of course many other factors including price, lens quality, autofocus, and resolution factor into overall camera quality.

The P65+ features the best color performance yet, but DxO Labs said its comparatively good performance in low-light conditions helped it carry the day. … Read more

Apple software now supports Nikon's top SLR

LAS VEGAS--Apple on Monday added support in its software for raw image files from Nikon's top-end SLR, the $8,000, 24.5-megapixel D3X.

Apple's Digital Camera Raw Compatibility Update 2.5 also adds support for Epson's Epson R-D1x digital rangefinder camera, according to the Apple support page.

The software enables Aperture 2, iPhoto '08, and iPhoto '09 to interpret the cameras' raw files, proprietary formats that include more information than JPEGs. The update requires Mac OS X 10.4.11, Mac OS X 10.5.3, or later.

A full list of Apple's raw image support … Read more

Adobe tests support for Nikon's top-end D3X

Adobe Systems on Friday issued near-final release candidate versions of Lightroom 2.3 and the Camera Raw 5.3 Photoshop plug-in, software that can support Nikon's new top-end, $8,000, 24.5-megapixel D3X camera and Olympus' mid-range, $1,299, 12.3-megapixel E-30.

According to the release notes, the new Lightroom version also fixes a few bugs: a memory leak that could crash the software while people were making local editing adjustments to photos, a processing error handling smaller sRAW photos from the Canon 5D Mark II, a slideshow glitch, and problems uploading and burning files to discs.

Lightroom is designed for editing, labeling, and cataloging photos--in particular, the flexible but non-standard raw files from higher-end cameras. Adobe Camera Raw is used to handle raw files in the more general-purpose Photoshop software, letting people convert them into JPEG, TIF, or other more portable formats. … Read more

XDepth Raw Converter up for grabs--and free

Trellis Management has announced the availability of the XDepth Raw Converter for Windows, available free of charge for both personal and professional use. The XDepth Raw Converter is a RAW development and 48-bit image-processing software tool that features the proprietary XDepth RAW image compression technology.

The XDepth Raw file format is a new (announced in October) file format that features JPEG compatibility, visually lossless compression, JPEG compatible thumbnails, and full RAW development controls. The XDepth file format not only offers raw compression, it also offers copyright protection by securing copyright and author data within the file itself. The security features … Read more

'Tis the season to Crave: Stephen Shankland's picks

Editor's note: From now through the end of December, various Crave experts will be sharing their top five (mostly) tech-related wishes for the holiday season. See what we crave, and maybe you'll get some ideas!

I'll be honest. What I want is Canon's EF 500mm f/4L IS USM telephoto lens, but it costs $5,600, so let's move on to some options that aren't quite so detached from economic reality for a mostly amateur photographer such as myself.

Obviously my camera is a Canon SLR, but I'm reasonably happy with my setup right now, so here are some items I covet that are more modestly priced and that happen to be neutral as regards camera manufacturer.

1. WhiBal white-balance card. I shoot raw images, which means data is taken directly from the camera's image sensor without any in-camera processing. I like it because it gives me more flexibility for matters such as exposure adjustment. Second in importance to exposure, though, is fixing white balance--for example the orangey color cast you'll often see when shooting under incandescent lights or the bluish tinge of pictures in the shade.

The flip side of raw photography is that it's more manual labor than just grabbing the JPEG, but to me it's worth it. I mostly just eyeball the white balance, but sometimes keying off parts of an image--the whites of someone's eyes or gray and black clothing--gives an easier way to set white balance with software. But for more precision, the WhiBal cards from RawWorkflow.com give an easy way to be more rigorous. You take a photo of the durable card, which shows a standard 18 percent gray, then set the white balance in software off that part of the photo. With modern raw-image editing software, you can synchronize the white balance for a series of images off the one you took with the card. The $19 keychain model looks about my speed.… Read more

Apple software supports 5D Mark II camera

Apple has added support for raw photo files from Canon's vaunted if imperfect 5D Mark II to its Aperture 2 and iPhoto 08 software less than a week after rival Adobe did so with Lightroom.

The Digital Camera Raw Compatibility Update 2.4 also supports Canon's high-end compact, the PowerShot G10, and the Pentax K2000/K-m (presumably the white version, too), according to Apple. It requires Mac OS X 10.4.11 or Mac OS X 10.5.3 or later.

Also supported is Leaf's higher-end digital photography hardware, the AFi-II 6, AFi-II 7, Aptus-II 6, and … Read more

Adobe Lightroom 2.2 supports 5D Mark II

Adobe Systems released Lightroom 2.2 on Monday night, catching up the photography software's support for the Canon EOS 5D Mark II and several other newer cameras, building in the camera profiles feature, and mashing a number of bugs.

The update (downloads available for Mac OS X and Windows) is the second half of Adobe's one-two punch for supporting the "raw" image files produced by several higher-end cameras. The first half came in late November when Adobe updated Photoshop's raw-conversion software.

Raw files provide more editing flexibility than camera-produced JPEGs, but they also require manual processing. Software such as Lightroom and Apple's Aperture can handle this processing, along with cataloging, labeling, and printing. With the constant parade of new cameras, the software must be frequently updated.

Another change in version 2.2 is built-in camera profiles, which give photographers various options for tone and color for their images. I've been strongly recommending them since their release on Adobe Labs; I apply the "camera faithful" profile when importing my images to give what I feel is a more natural look. However, Lightroom profiles aren't available for all cameras.

Since Canon started shipping the 5D Mark II in late November, photographers have been avidly blogging about the arrival of their new $2,700, 21-megapixel, full-frame SLRs--or not-so-avidly about them being backordered. One refrain notes the absence of Lightroom support; Adobe and Apple write their own raw conversion software, which must be updated for each new camera's proprietary raw file format. … Read more

Photoshop supports 5D Mark II, camera profiles

Adobe Systems on Monday updated its raw-image processing software for Photoshop CS4 with support for Canon's higher-end EOS 5D Mark II camera and building in support for the camera profiles that can give images more realistic colors.

The camera profiles, which I strongly recommend people employ, let you change image tones and colors to better match camera settings such as neutral, portrait, and landscape. They'd been released on the Adobe Labs site, but now are officially built into the Adobe Camera Raw 5.2 software and an accompanying utility, DNG Converter for changing cameras' proprietary raw files into … Read more

DxO sheds light on camera sensor performance

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

Adobe delays Photoshop.com, CS4 goodies

Adobe Systems has delayed by a few weeks the release of some upgrades to its Photoshop.com online service and to its high-end Photoshop CS4 software.

The upcoming Photoshop site upgrades include features to import address book entries from Hotmail, Yahoo Mail, and Gmail to improve photo sharing; an uploading tool to synchronize software on a person's PC with the version stored online; and new pricing options. They had been due Tuesday but now will go live "later this month," Adobe said in a statement Monday night.

Also slipping a few weeks is the Photoshop CS4 Configurator, … Read more