Looks like the Midwest isn't the only thing that's freezing up this holiday season: many people are reporting that their 30GB Zunes are spontaneously going on the fritz as well.

Microsoft's Zune MP3 player.

(Credit: Microsoft)

The symptom is being reported widely on discussion boards about Microsoft's music player, including Zune.net, Zune User Community Forums, and ZuneScene. With the problem, people's Zunes reboot but freeze when the startup status bar reaches 100 percent.

Some users reported the problem happened at exactly midnight PST, at the very beginning of the last day of the year. That timing led some wags to call the problem Z2K after the Y2K problem that was widely feared to cripple the computing industry when computer clocks moved from 1999 to 2000.

"It reset itself. I don't know why," said one owner who posted an account of his Zune problem on YouTube after reporting it on the Zune.net forum.

Microsoft didn't immediately respond to requests for comment Wednesday morning, but issued a statement later in the day (see below).

"I hate to say it but I believe this is the end of the road for the Zune and I. Just as I was happy with the last update and things were fine, we get another major meltdown. I was always supportive and had good things to say about my Zune to those that would ask, however this is the nail in the coffin," griped user Redinight on a ZuneScene discussion board. "I can't take it anymore. I can't sit here all the time and wonder what Microsoft does right or wrong anymore, I just want to get up and go listen to my music. Listening to music is about the last thing I do with my Zune. I always have to reinstall, download new firmware, or wait for the slow software to catch up. Now this? I want to throw it away and never look back."

Originally posted at News - Microsoft

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.

RawWorkflow.com's WhiBal white-balance card

(Credit: RawWorkflow.com)

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. ...

Canon has acknowledged the "black dot" problem that mars some shots taken with its new 5D Mark II camera, but doesn't yet have a fix, according to a statement on the company's Australian support and service Web site.

Canon's 5D Mark II full-frame SLR

(Credit: Canon)

"We are currently investigating ways to improve and/or mitigate these phenomena. An announcement will be made on the Canon Web site when measures to address these phenomena have been decided," according to a statement dated December 17.

The company described the problem the same way many who've complained about have: "When shooting night scenes, the right side of point light sources (such as lights from building windows) may become black. The phenomenon may become visible if the images are enlarged to 100 percent or above on a monitor or if large prints of the images are made." For some examples, check farther down this post.

The company also said it's looking into vertical banding noise that can show when shooting files in the sRAW1 mode, which produces a smaller file size than regular raw images....

Originally posted at Underexposed

There's something of a cottage industry on the Internet of making parodies through artful subtitles of Der Untergang, a movie about the last throes of the Third Reich. And now there's one that takes on Nikon's D3X, the company's new $8,000, 24.5-megapixel SLR.

The ...

Originally posted at Underexposed

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.

Nikon's D90 sensor beats out the one in Canon's 50D, judged on the basis of the raw files it produces.

(Credit: DxO Labs)

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.

...

Originally posted at Underexposed