@Adam_Mercier: The manual says (page 128) that there are fast/slow movie modes x0.25, x0.5, x1, x5, x10, and x20. It does not say it explicitly, but it is quite possible that the camera records with up to 120fps in 1080p. That means that it does have a functionality for slow motion as well as sort of "fast time lapse" with up to 0.8s intervals.

Can someone who got the camera already test it?

The tech specs on the Samsung site only list 60p as the highest frame rate possible. Why on earth would they bury 120fps as some weird .025 scale factor on another frame rate? I'm concerned it's a fake software interpolated mode and not real progressive frames. For me this is feature that will make me buy the camera or not. Any clarity on this from early adopters would be appreciated.

@racer5 Exactly. That concerns me too. If they have a true 120fps capability then they do not market it right. On the other hand, if the resulting slow motion looks great, I will be fine with what ever they do internally. Based on what I read about the camera, the sensor and processor should be capable of 120fps at 1080p, so I am not giving up my hope just yet.

I got confirmation from Adorama that I will receive the NX1 form the first batch by the end of the next week. The possible 120fps will be the first thing I will test.

As a side note, I decided for the NX1 vs GH4 because I do mostly stills and a first class video is somewhat less important to me. The GH4, as far as video goes, is hard to surpass in its price bracket.

Edit: The above slow motion clip looks great! Thanks, @adventsam.

@DMZ any tests you want to contribute would be appreciated brother

@adventsam the test is sharp but I'd like to see different shutter speeds and subject motions

How is the shutter noise/performance on the NX1? So many Sony a7s owners complain about the explosive noise of the shutter on the a7s.

Does the NX1 have a "silent" i.e. electronic shutter only option like the Panasonic gh4, lx100 etc?

It has silent shutter yes. This software can edit h265 natively. Anyone used it? http://www.amazon.com/Cyberlink-PowerDirector-13-Ultimate-Suite/dp/B00N4OLGPM/ref=sr_1_6?ie=UTF8&qid=1417165720&sr=8-6&keywords=powerdirector+13

PowerDirector 13 has stability issues. It has currently 137 1-star ratings out of 397 reviews on Download.com. The spec looks great but it will need a bunch of patches before it becomes useable. (http://download.cnet.com/CyberLink-PowerDirector/3000-13631_4-10483012.html)

For the brave ones: PD 13 Ultra is on sale for around $70 for the next 3 days: http://www.cyberlink.com/stat/events/enu/2014/Q4/PPC_PDR_BlackFriday_B/index.jsp

In stock at http://www.adorama.com/ISGNX1.html

To answer the question posed earlier by myself and addressed also by DMZ:

"the NX1 has a front curtain electronic shutter, so not completely silent..."

says the author of this page: https://www.wimarys.com/samsung-nx1-extensive-iso-test/

Does this mean this cam has a great hack future? Easy to hack?

No, it does not mean anything.

Samsung tried to create something bold with h.265 in the NX1 and a nice video image in high resolution, but the implementation didn’t quite work. The camera cripples itself in so many ways it becomes almost useless.

We tested all ISO settings from 100 up to the camera’s limit of 25600. Interestingly this is the first camera we ever saw that has a consistent 10.1 stops without any shift in brightness throughout the whole range up until ISO 3200.

http://www.cinema5d.com/lab-review-samsung-nx1-video-mode-frustrating/

I am not fan of their "lab tests", DR measurements looks wrong (as their previous issues with same test), and idea to use old iMac for conversion without understanding H.265 is weird.

If you are considering buying the NX1, I suggest you do not read the http://www.cinema5d.com/lab-review-samsung-nx1-video-mode-frustrating/ review without the comments below that review.