And according to our sources the Panasonic is the first non-Sony camera using the Sony RX100m3 1 inch sensor. The source also said the sensor will be sold to other companies too (likely Fuji and Samsung coming as next)

http://www.mirrorlessrumors.com/confirmed-via-trusted-source-sony-1-inch-sensor-used-by-panasonic-and-likely-by-other-companies-too

No clean HDMI output in the FZ1000?

http://www.imaging-resource.com/cameras/sony/rx10/vs/panasonic/fz1000/

And Sony dropped the price of the RX10 to US$998,00

Now with the 1000$ price for RX 10 it's harder for me to make a decision.

Anyone have a low-light video performance comparison ? How do RX10 and FZ100 perform at the same ISO etc. ?

Anyone has seen a proper high speed video from FZ1000 ? I have found only this one and looks good.

If the situation with the LX8 and FZ1000 will be the same as with LX7 and FZ200, the LX8 will have better image quality in high speed mode than FZ1000.

Of course it has, but the image quality in high speed mode is not directly related to sensor size. It's about compression and image compression artifacts, but in the FZ200 there were a lot of image compression artifacts as aliasing or huge macroblocking. LX7 had much less compression artifacts despite of the sensor size it used.

That zoom range is excellent, it gives plenty of scope for framing subjects in a wide range of situations. The camera also feels comfortable in the hand, with a nice chunky grip and responsive controls within easy reach.

Photographers are starting to see the benefits of electronic viewfinders now and the FZ1000 has an excellent device capable of showing plenty of detail with no flickering or banding. The Focus Peaking display is also a bonus when focusing manually.

http://www.techradar.com/reviews/cameras-and-camcorders/cameras/compact-cameras/panasonic-lumix-fz1000-1252777/review

http://www.imaging-resource.com/news/2014/07/01/panasonic-fz1000-sample-gallery-images-big-zoom-big-sensor

Panasonic's entry also has a 1" sensor but offers a more powerful lens, though the maximum aperture range isn't constant like on the Sony. The RX10's movie mode is very impressive, but Panasonic goes above and beyond with 4K video support and a host of recording tools. One might expect the DMC-FZ1000 to cost as much as the RX10, but it's actually $100 cheaper (as of July 1).

http://www.dpreview.com/previews/panasonic-lumix-dmc-fz1000/6

with the price drop, I'm going to have a really, really tough time making this call! Panasonic's decision to leave out some features to protect its GH4 market mean the RX10 has some big advantages in the video department relative to the FZ1000. The ND filter is super useful, as is the faster lens. The RX10 build quality also feels roughly 1000x better than the FZ1000: the difference in this category is night-and-day.

http://www.imaging-resource.com/news/2014/07/02/sony-rx10-vs.-panasonic-fz1000-we-pit-the-camera-that-had-no-equal-against

Next part of comparison with RX10

http://www.focus-numerique.com/test-1933/compact-panasonic-fz1000-test-terrain-19.html

It has a 62mm filter thread. So 62mm and up if you use converter.

@olli66

I just hope there will be a firmware update or hack for the FZ1000 allowing 24p on 4k...

There was a firmware upgrade for the gh2 that added 30p, so I'd guess you'll probably have to ask that of panasonic.

@DrDave a possible reason for that is cause the ax100 downsamples 16.8MP to 8.3MP(4K) which means advantage in some situations in moire and sharpness over GH4s direct sensor crop to 8.3MP, but since the pixels on GH4 are way bigger than on ax100, the GH4 has significant advantage in low light, and bigger dynamic range, the panas 100mbit 4k handles motion significantly better than the sonys 60mbit,