BTW, a fellow LX100 owner asked me if I could recommend a small, 2- or 3-axis handheld stabilizer for use with the LX100 - but I've never used such. Can anybody recommend one?

Finally got to try the LX100 today although brightly. 2160/24p. Shutter was at 60, Aperture was at f/1.7 and ISO was set to 400. It was also on auto focusing but since the lens was set to f/1.7, you shouldn't expect it to be decent. As for white balance and anything else, I have no idea. Again, I only used it briefly at a show. I'll try to get this sample up on Vimeo possibly later today so people can download.

@vulgatron 1. The GX7 and the LX100 have the exact same sensor. The LX100 uses the same processor as in the GH4. It is therefore unlikely there is much difference in the "cinematic" quality of the video (whatever your definition of that term) between the GX7 and the LX100. You do give up Cine-D and Cine-V, but otherwise you have all the picture controls of the GX7 on the LX100.

1. If you do not mind 30p, shooting 4K on the LX100 will give you visibly superior 108030p than the GX7 HD. If you are not sure whether your computer can handle 4K, why don't you download any of the Vimeo videos I posted here - they are the 4K versions. Usually the constraint if any is the software, not the hardware. So you may need a small investment in a better editor - well worth it.

2. The LZ100 is optically stabilized (you can turn it on or off). The 20mm pancake is not. You will be unable to shoot video handheld using the GX7 and the pancake, or your old Canon lenses. Period. The stabilizer on the LX100 is superb. What's the point of a small camera if you must uses a big tripod all the time to produce watchable video?

The LX100 has 24p. I just think 30p is obviously superior for anything with motion (I prefer natural to cinematic!). I don't know about photos - but you do get your choice of picture shape with no loss of resolution (4:3, 3:2, 16:9, 1:1) that you do not have with the GX7.

@abolit Like tosvus mentions, if I wish to add an accessory and also to free the battery/card compartment when I mount it to a tripod or a Gorillapod or small rig. Cause if you plan on shooting video with the LX100 in your bare hands, you'll need to be really steady to not produce jitters/rolling shutter/etc... A small Gorillapod will help stabilize a lot, and it's still a very light package to carry. In many cases, I will have the bare camera and I love that I can carry great image quality in such a small package. But there are other times when I will want to elevate my images to another level, and yes I will sometimes rig it and/or accessorize it. If I had a choice, I would have the LX100 for personal & family stuff only, and the GH4 for all my professional and artistic projects. But I unfortunately don't have the budget for the GH4 right now. So the LX100 is my access to 4K and great quality 1080p, and so I will use it in many different settings and projects, both personal and professional hence why I'm looking for a cage.

@Aria Thanks for the link! Looks like a decent price for what you get too. I was also looking at this one :

http://www.bhphotovideo.com/c/product/1040130-REG/walimex_pro_19882_light_weight_cage_for.html

What kind of ND filter is needed to be able to shoot wide open with a 180º angle?

Answer to your question does not exist as ND filter strength depends on actual lighting (as well as 180 degrees is different depending on fps setting).

Also any special SD card to be able to shoot 4K or any Class10 will do?

http://www.personal-view.com/talks/discussion/10276/gh4-memory-cards.-what-works-and-what-doesnt#Item_28

@vulgatron: Regarding "good 1080p with 50 or 60p": The LX100 is crippled to <= 28MBit/s for all video modes except 4k. So while the 4k recording (at 100 MBit/s) brings marvellous results, the 1080p modes provide mush and compression artefacts whenever there is significant movement in your scenery. Thus I would not recommend the LX100 if you mostly want to record 1080p50.

Regarding 24p: My EU model allows to record 4k in both 25p and 23.976p or 24000/1001 fps - very near to 24p and usually a problem, but I think it should be mentioned that "24p" on the LX100 is not precisely "24p", there are other cameras that do record with precisely 24 fps.

Regarding SD-cards: I've got only SanDisk Ultra 95MB/s 64GB cards to test with, which I used with my GH2, and they work just fine for 4k recording.

@vulgatron: I cannot recommend another camera in the same price range that offers better 1080p50.

@vulgatron about the "cinematic" video that you posted from the GX7: part is caused by the vintage lens used, old lens are less "clinical" than the new ones, and with less contrast. But especially the colors are the result from grading (the author says in the comments that he graded the footage with Colorista).

@karl I had the same experience with "Watson" battery clones (from B&H): total battery life is ok, but after 3 bars the battery dies pretty quickly. Caught me by surprise (but no more). The OEM Panasonic battery does not do this; there is a gradual changing of the bars.