Image quality is very good though the files may appear a bit softer than some may prefer. A bit of sharpening in Post may be needed with some files, more so than with some competitive cameras. The camera shoots standard AVCHD but also H264 in either a .MOV or MP4 wrapper. Unlike AVCHD which is a display format, and which needs transcoding for proper editing these .MOV and .MP4 files can be dropped straight onto a timeline without transcoding. These are at 40Mbps, or more accurately 36Mbps with 4Mbps reserved for high quality 2 channel LCPM digital audio.

Anyone looking for a small, light weight traditional camcorder with a fast zoom lens, very decent image quality, unique control interface and decent handing should look closely at the JVC PX100.

The optional EVF (in North America) is lousy, with poor quality and a distant eye point. EVFs have gotten very good these days. JVC just cheaped out on this one.

The touch screen is also resistive, where you have to press or tap hard. What's with that? This is 2013. I'm surprised JVC could even source such a lousy touch screen these days.

I've checked that and sadly the lens is really f.1.2 - 2.8 ( wide end - long end )

There must be something wrong in these specs. If the sensor is really 1/2.3", and if the camera has a 35mm equivalent focal length of 29.4 - 294mm, then the real focal length can't be 3.3 - 33.3mm. That would match with a sensor of about 1/4". IOW, the real focal length should be something like 5.5 - 55mm -- IF that's really a 1/2.3" sensor. And by the way, a constant f.1.2? No way! But this camera has a really interesting form factor and size, can't wait to see some serious tests...

"720p @ 120fps - if it looks nice, great. Lens appears to be 1.2-2.8 (approx 28 - 300 equiv)."

I do not understand the fuss - the Panasonic FZ200 does 720p@120fps and the lens is f2.8 25-600mm (f2.8 all the way).

I am the first one! :) Specifications came up :-/ http://www.bhphotovideo.com/c/product/909750-REG/jvc_gc_px100_full_hd_compact.html

Wonder when they will come clean of the real recording resolutions. If it is another postage stamp sized hi-speed image then it will suck. Or maybe they have a 1080p sized image but its skipping lines creating bad quality.

If it really is a true 600fps HD camera that has a buffer for 2-3 seconds at that speed it will be the milestone camera of the year. Hope it is! Phantom and Other Hi Speed cameras will still have their place but for film makers looks like the time has arrived. FS 700 was just a teaser of what was possible.

Hi Speed starts to get real interesting at 500fps+

More photos from this Japanese source

Anyone knows what's the lens total f.stop? From f1.2 to? I mean it cannot be constant f.1.2... that would be to beautiful to be real!

Here's a foto but it's too blurred for me to read out :(

http://av.watch.impress.co.jp/img/avw/docs/581/392/html/jvc02.jpg.html

I hope JVC uses the "Sony FS700" aproach with the higher framerates, keeping resolution but limiting in recording length (there are some visual costs here aswell, but still..). If so this can be a very attractive camera. Also curious about how good the stabilizing is, and if it features (live) hdmi.

I'm sure the 600fps is at lower resolution....120fps at 720p is my guess, and 600fps is at 480p or lower.

If this thing really can produce 600fps in decent quality on 1080p than my jaw will literally fall off. Is it really possible that a 1000$ camera can achieve such a level of high-speed filming. I thought we were still years away of anything remotely affordable in the high-speed camera segment...

I will try to find the JVC booth today (it's early morning in Las Vegas as I write this).

Olympus does not have a floor booth instead they have private meeting rooms by appointment only.