The ins and outs of screening photos and high-def home videos on your HDTV.
Chances are you bought your HDTV with one purpose in mind: to watch movies, sports, or the many network and cable TV series like Lost and The Sopranos that look stunningly good in a widescreen, high-definition format.
But an HDTV can function as more than just an instrument for passive entertainment. With its high-def display, that new set can also be used as an all-purpose screen for viewing slideshows of photos taken with a digital camera. And if you haven't yet experienced how good home videos shot with an HD camcorder can look, you're in for an eye-opening experience.
With HDTV sales booming, it's not surprising that manufacturers are offering digital cameras and camcorders with features aimed at easily viewing snapshots and videos on high-def screens. At the same time, TV companies are making sets more multimedia- friendly, outfitting them with connectors and capabilities that enable easy high-rez digital photo and home-video viewing. Unfortunately, it's not always clear which features and jacks on a TV serve this purpose. We'll take a look at what these connectors are and what they do so that, if you plan to use your HDTV for viewing slideshows and home movies, you'll have a better idea of what to look for.
Until recently, almost all camcorders and digital cameras provided only a basic "A/V output" to connect directly to a TV. Usually, the cam included a cable with a mini connector on one end and a cluster of jacks -- stereo audio and composite- and S-video -- on the other. The 480-line interlaced video signal this connection delivers is appropriate for standard-def camcorders, which record video at that resolution. But digital cameras capture images at a much higher pixel density, and when they get scaled down for TV viewing, quality is dramatically compromised.
When high-def camcorders finally started to arrive, A/V output jacks also got bumped up to high-def status, with the first few cams from Sony and Canon featuring an analog HD component-video output. Using an included cable, you plugged a multipin connector into the camcorder, while both component-video and stereo-audio connections hooked up to the HDTV's inputs.
But a few recent high-def camcorders (see HDTV-Friendly Camcorders) help streamline the HDTV connection by including HDMI, a digital interface that transmits high-def video and multichannel audio over a single cable.
HDMI jacks are standard-issue on newer HDTVs, and some companies are even putting them on the sets' front or side convenience-input panels. To watch HD home videos, just plug the cam into the TV's HDMI convenience port and hit play. No muss, no fuss -- and no stretching around to reach the set's dusty rear-panel inputs.
Digital still cameras are also getting on the HDTV connection train. Both Sony and Samsung have announced models with HD video outputs, and they should be sitting on store shelves by the time you read this. Several new Sony point-and-shoot models have a component-video output similar to the one on the company's high-def camcorders. And Samsung's Digimax L85 is the first digital still camera with an HDMI jack (see HDTV-Friendly Cameras). Although digital stills viewed on an HDTV can look wonderfully crisp, enthusiasts should note that the highest-rez HDTV screens max out at 1,920 x 1,080 pixels -- a step down from the pricey computer monitors used by photo pros, which generally offer 2,500 x 1,600-pixel resolution.
PHOTOS IN A FLASH
Yet another, more convenient method for screening high-rez digital photos on your TV is via removable memory cards. A number of HDTVs provide slots that accept Secure Digital (SD)/Multimedia Card (MMC) or Memory Stick cards, as well as formats such as Compact Flash and xD Picture Card via a PC card adapter. Simply pop the card out of your camera, walk over to the TV, and plug the card directly into a memory-card slot to view JPEG-format images.
Even if your set lacks such slots, you can still get around hooking up your camera directly to an HDTV to view high-rez photos. Samsung's BD-P1200 Blu-ray Disc player has a Multi Memory Card Interface that supports all current card formats -- Microdrives included -- while Sony's PlayStation 3 is packed with photo-friendly features, including Compact Flash, SD Card, and Memory Stick slots, as well as inputs for plugging in USB mass-storage devices. Both the Sony and Samsung players read the image files from the removable media and then display them at high-def resolution via your TV's HDMI connection.
ANOTHER VIEW: HOME NETWORKS
Recent efforts by several companies to integrate HDTVs into wired or wireless home networks also aim to simplify home-video and photo viewing -- even if that process does entail a number of initial setup headaches. The idea is to outfit TVs with either built-in Wi-Fi capability or a separate digital-media receiver that can access and stream video and music files from a computer. A good example of an HDTV with networking capability is HP's SLC3760N 37-inch MediaSmart LCD model (42- and 47-inch versions are scheduled for release later in 2007). Its built-in media receiver lets it hook into a home network to pluck high-def video clips and photos from a PC's hard drive for display on its 1,366 x 768-pixel screen. And since HP owns the popular photo-sharing Web site Snapfish, the TV's Entertainment Portal not surprisingly provides easy access to that site for expanded photo-viewing opportunities.
If you prefer to use an outboard box to get your TV online, there are a number of options. NetGear's Digital Entertainer HD and D-Link's Media Lounge are Windows PC-oriented receivers that can stream video and digital photos over a home network and display them on your HDTV via an HDMI or component-video hookup. And Mac-heads preferring to dwell in the iTunes universe have their bases covered with the new Apple TV receiver. Although this limits you to viewing videos encoded in the iTunes-friendly MPEG-4 format (Apple's QuickTime Pro software provides the appropriate preset), both home videos and photos can be transferred to Apple TV's 30-gigabyte hard drive, freeing you from having to boot up your computer when you want to view them.
As more and more folks ditch their film cameras and analog standard-def TVs for shiny new digital models, it's just a matter of time before they discover that digital photos look spectacular on their new HDTV's high-rez screen. And the same goes for videos shot with high-def camcorders, a handful of which record at the same 1,920 x 1,080-pixel resolution offered by top-tier HDTVs. Digital technology has finally taken us back full circle to the days of the family slide-show. But this time around, once you finish reliving your summer vacation, you won't have to roll up the screen and stash it in the closet.