Source: Tom's Guide US | Keywords: hd, camcorder | Themes: Digital Cameras, Digital Entertainment
12. Test Assessment
Not surprisingly, the Canon wins out, with an average score of 16.5 out of 20 for image quality. Its highly contrasted images are the most detailed of all the camcorders. But do be sure to look at the image quality for yourself before making a buying decision, to avoid surprises. The rest was all but perfect. The only drawback, for us, is the choice of the MiniDVD medium, which is more limiting than memory card or hard disk, and above all more costly to use.
Good Results
Panasonic and Sony finish neck and neck, with scores of 13.8 and of 13.2 out of 20. Both models have some serious strong points and deserve to be recommended. The (relative) weakness of their scores is due in part to problems with the white balance, but with their more than satisfactory image, numerous features and functions, and highly practical memory-card storage medium, these two models deserve a look. We’ll be keeping an eye on how they develop.
Very Disappointing
Finally, the Hitachi had trouble reaching its score of 6.9/20. We don’t know whether our test camcorder was a pre-release model or had a problem with its sensor, and we’ll be looking into that. Such results are totally unworthy of a camcorder costing more than $1,873.50.
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Be aware that there are some poorly-advertised issues with at least some of these cameras.
It is common practice for cameras with full 1920x1080 sensors to scale the images to 1440x1080 before compression.
Also, camcorders that record progressive frames at 24pf tend to store their data as if it were 60i (60 fields/sec, interlaced) by duplicating and reordering parts of the video data. Most applications (Ulead Video Studio, Sony Vegas, etc.) believe the video files when they say they're 60i, so they try to interpolate between shifted and reordered fields in a process called deinterlacing. This results in smoother images that are not as sharp as they could be and ghosting of fast-moving objects. Camcorders that record to 30pf or 30p should not have this problem.
Also, as mentioned in the article, it currently takes some special applications (like Video Studio or Vegas) and/or a bit of technical know-how to even be able to read the M2TS files many of these camcorders produce.
HD Camcorders are in their infancy at the consumer level. Expect lots of changes quickly right now. Even Pro HD cameras are changing quickly right now.
The Tomshardware image with the Bug:
http://media.bestofmicro.com/0/P/9 [...] nglish.jpg
More about Chroma Sampling Bug:
http://www.hometheaterhifi.com/vol [...] -2001.html