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IN DEPTH  The momentum behind Ultra HD 4K TV is quickly gathering By  James Rivington   November 26th 2014 4K is the hottest techy buzzword of 2014, and it's a technology that's rewriting the rulebook when it comes to image quality. It affects not just the world of 4K TV and cinema, but also cameras and image capture, smartphones and tablets, computer monitors and PC games - practically anything that displays images or records video. 4K TV sets are now available from most of the major TV manufacturers, but they're merely the tip of a very cool technology iceberg. So what, we hear you ask, is 4K really all about? What is 4K? What that means in terms of potential image clarity is more fine detail, greater texture and an almost photographic emulsion of smoothness.The headline fact is simple and dramatic: 4K Ultra HD TVs (also known as UHD TVs) deliver four times as much detail as 1080p Full HD, that's eight million pixels compared to t...

goes up to 1080p, sorta Canon Rebel T1i: Courtesy Canon We all swooned when Canon brought 1080p video recording to the Eos 5D Mark II cameras and showed off the gorgeous footage. But unless you're a pro photographer who can get a tax write-off for it, how likely are you to shell out $2700 for the Mark II? Now, Canon brings HD goodness to the entry level with the $800 Rebel T1i . (Fortunately, Canon's products are more user-friendly than their names are.) Like its predecessors, the latest Rebel brings Canon's latest SLR tech to the entry level. Included are a 15.1-megapixel CMOS image sensor and the DIGIC 4 imaging processor. Together they allow the camera to capture photos at up to ISO 12800 (i.e. seeing better than you can), and grab HD video. The definition of high definition is a little bit mangled, though. 720p video is captured at a standard 30 frames per second. But the "full" HD, with 1080 lines, is limited to 20fps, which will likely give the video a cho...

The main thing we care about is image quality , not bells and whistles. We want your best camera with a street price under $300. And may the best cam win ! With only one exception, the cameras submitted for this roundup cost around $250 or less. Maybe it's the economy, maybe it's some quirk of consumer psychology — but there's no such thing as a $300 camera anymore. Quite a bit has changed in the camera landscape since this survey began in 2001 — and even since last year. All of these cameras now have Optical Image Stabilizers . That is, their sensors actually jiggle, about 4,000 times a second , to counteract the little jitters of your hand — an effective way to reduce blurry shots when you're zoomed in or in low light. All now offer Face Recognition , too. It sounds like a bell, or maybe a whistle, but is, in fact, fantastically useful. When you frame up the shot, the camera draws rectangles around any faces that it spots and calculates its focus and exposure on these...