I am checking out a CVSEJ-A4402 video camera - low cost currently USD$177.50
Of interest because it is representative of advances in cameras emerging from the Chinese electronics industry. My first test was to point it at line resolution charts EIA1956 and ISO12233. Good results, 700-800 line pairs rating which well qualifies this as "High Definition". I am digging deeper to check out the potential for educational use. There is no manual focus or focus lock but the auto-focus seems to work as well as can be expected for a low-cost optical zoom lens. I am seeing it hunt once for focus then lock in until a major change of view happens. Focus hunting takes longer in dark conditions. I wish it had a mic input port. The LCD view matches well with the framing of the recorded video - IMHO better than most cams which tend to record more than they show to allow for traditional TV cropping. The testing continues.
Update - Test shot now posted on Youtube: