Pocket HD Camcorders Columbia SC
Pocket HD Camcorders
by Christopher Breen , Macworld.com
Sanyo's Xacti VPC-CG10, Pure Digital's Flip UltraHD, and Kodak’s Zi6 .
While pocket camcorders have some features in common—a battery, a storage medium, an LCD screen, a way to connect the camera to a computer, and simple controls—they implement those features in different ways.
Form The truly pocketable camcorder looks similar to a candy bar–style mobile phone. The lens sits near the top of the camera and the LCD is on the back, usually above the minimal controls, typified by a single red record button, a play button, and a few additional buttons for zooming and navigating through captured clips.
Somewhat larger camcorders that feature a pistol-grip design—such as the Xacti and G-Shot—offer flip-out LCDs. These cameras include a few more controls—menu buttons and a button for taking still pictures, for example.
Battery The Vado HD, G-Shot, Xacti, and Webbie use proprietary removable batteries that charge either when the camera is connected to a powered USB port or when it’s inserted into a charging dock. Using a proprietary battery means that you can’t simply stop by a convenience store and buy new batteries if you run out of power when you’re out and about, so you should consider buying an extra battery ($20 to $30) when you buy the camcorder. The Flip MinoHD has a nonremovable battery that you charge over USB. The Flip UltraHD, Zi6, and Zx1 use AA batteries. (The Flip UltraHD can also use a bundled battery pack chargeable over USB.)
With a removable battery you can swap in a new battery when you need more juice. With a nonremovable battery, your camera is out of action while you charge it. If your camcorder runs off AA batteries, you can easily find replacements in a pinch.
Memory Some of these cameras use removable media, while others include built-in storage. The G-Shot, Zi6, Zx1, and Xacti camcorders use SD media and the Webbie employs Sony’s own Memory Stick card. The Vado HD and both Flip camcorders use internal memory—the Flip MinoHD has 4GB of memory, whereas the Flip UltraHD and Vado HD each include 8GB of memory.
Removable media is helpful when you’ve filled the card but you don’t have a computer nearby where you can offload your clips. All you need to do is swap cards. That said, the Flip UltraHD and Vado HD can hold up to two hours of video in their 8GB of internal memory. That should be plenty.
LCD All pocket camcorders use an LCD for both viewing your subject while shooting and watching the videos you’ve shot. Screen sizes, measured diagonally, vary from tiny (the Flip MinoHD at 1.4 inches and the Webbie at 1.8) to midsize (the 2-inch displays on the Flip UltraHD, Vado HD, and Zx1) to fairly spacious (the Zi6 at 2.4 inches and the G-Shot at 2.5) to the Xacti’s this-is-like-a-real-camcorder 3-inch flip-out LCD.
The LCDs on the G-Shot and Xacti camcorders offer the ability to easily take self-portraits, because you can rotate the LCD to center yourself in the frame. They also make it easier to shoot subjects when you need to hold the camera over your head. With the candy bar–style camcorders, you can’t see the screen when the lens is pointed at you or when you hold the camera over your head.
The Webbie addresses this problem in an interesting way. Instead of a moving LCD, it has a lens mounted on a rotating barrel at the top of the camera. To capture something over your head, hold the camera up and rotate the lens about 45 degrees. The camera body is angled so you can see the display. It’s a cute gimmick, but I didn’t find it all that useful. It would be more helpful if the rotation had a click stop, instead of moving smoothly.
Creative Labs' Vado HD (left), Kodak's Zx1 (center), and Genius' G-Shot HD520 (right).
None of these cameras offers an optical viewfinder, so they need to have LCDs bright enough to remain visible in direct sunlight. Fortunately, they all do.
Shooting modes Each of these cameras shoots 720p HD video; some can shoot other modes as well. The G-Shot shoots stills in addition to 720p and standard-definition (640 by 480) movies, and it’s the one camera that can shoot at a low-quality 320 by 240 resolution. The Zi6 and Zx1 camcorders can shoot in three modes—720p at 30 fps, 720p at 60 fps, and standard definition (640 by 480) at 30 fps—and capture stills. The Xacti shoots 720p video at 30 fps and standard-definition video at either 30 or 60 fps. It too takes still shots—it can do this even when you’re shooting video. And the Webbie shoots 1,080p at 30 fps, 720p at 30 fps, and standard-definition video as well as stills.
File format These camcorders shoot video encoded in H.264 format. Also known as MPEG-4 Part 10, or MPEG-4 AVC (Advanced Video Coding), H.264 produces good results from low bit-rate captures. (The lower the bit rate, the smaller the file size and the poorer the video quality.)
Some of the files are wrapped in a file format that’s not QuickTime-compatible. For example, the Vado HD and G-Shot camcorders produce H.264 movies wrapped as AVI files. QuickTime won’t play these movies natively. You must install software such as the free Perian QuickTime component (perian.org), which lets your Mac read these files.
Data rate These camcorders differ in their data rate—the amount of data captured in the resulting files. And that data rate is reflected in how the movies look (though it’s not the only factor that influences their quality). The cameras that capture at data rates below 7 Mbps (megabits per second)—the Vado HD (around 4.3 Mbps), the G-Shot (around 6.3 Mbps), and the Webbie (around 4 Mbps)—produced video that lagged behind the rest of the pack in quality.
However, higher data rates don’t guarantee better video. The Flip MinoHD has higher data rates (around 10.4 Mbps) than its sibling, the Flip UltraHD (around 9.1 Mbps), but the UltraHD’s results are more pleasing.
Sound The Flip MinoHD and Vado HD capture 44.1kHz mono, while the G-Shot manages only 22kHz mono. The Flip UltraHD is the sole camcorder that captures 44.1kHz stereo. The rest use 48kHz stereo audio.
The built-in microphones on these cameras are fine for subjects within a couple of feet, but the sound on some of these devices gets very thin at a distance. Those that had the best sound (meaning good volume and fullness) were the Zi6, Flip UltraHD, and Webbie.
Computer connection and editing All of these camcorders connect to a Mac via USB. The Flip camcorders, the Zi6, and the Vado HD make this very easy, thanks to built-in flip-out USB connectors. The others include either mini- or micro-USB ports and cables. If a camcorder uses a removable memory card, you can plug the card into an external card reader.
Some of the cameras are bundled with Windows software for video editing. The exception is the Mac- and Windows-compatible FlipShare software included on every Flip camcorder. Though basic, it allows you to easily move clips from the cameras, trim them, create simple titles, export the finished product, and upload movies to MySpace and YouTube. The software is permanently planted on each Flip camcorder.
The lack of editing software isn’t a problem; you can import recorded videos into iPhoto. You can then import them into iMovie for editing. Again, you need something like the Perian QuickTime component to read and edit movies from the Vado HD and the G-Shot.
AV connection Given that these are all HD camcorders, you’d think they’d all allow you to send out HD video when attached to an HDTV via HDMI. Not so. The Flip MinoHD and Xacti output composite video only. If you want HD, you have to export the video from the camera and put it on a medium or device that can play it on your TV (a DVD or Mac attached to the set, for example). The Zi6 and Webbie support both composite and component video output. The Vado HD, G-Shot, and Flip UltraHD include jacks for connecting to an HDTV via an HDMI cable. The Zx1 supports HDMI and composite outputs.-->
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