Andrew Reid of EOS HD posted his indeep and long review of the Samsung NX1. The camera is pretty exciting and it costs $1,599, so it is also quite affordable. What's more the camera offers 4K support and clean 4K HDMI output for uncompressed quality. According to Andrew the Samsung NX1 is perhaps the best 4K internal interchangeable lens camera on the market for shooting in good light and if you want to see what to expect from this nice new product, make sure to watch the video comparison that Andrew posted on Vimeo (below). And the sensor is indeed a beast, because in Samsung’s lab its output ran at 6.5K RAW at 240fps! Of course the final camera doesn't give you the opportunity to shoot in 6.5K, but we all know what Magic Lantern did to Canon's products, so who knows, maybe in the future the NX1 will also get new possibilities thanks to talented users.
Andrew writes that the sensor is is basically a portable, power efficient version of the CMOS in the 6K RED Dragon.
"It can do the 6.5K raw readout thanks to a copper process on the sensor that reduces resistance and therefore heat by 70%. It is the industry’s first 28MP APS-C sensor for stills cameras (Super 35mm in cinema terms) and the first backside illuminated APS-C sensor. You can read a great interview over at Imaging Resource with Samsung about this here. (...) This new Samsung sensor is a massive step forward for them, indeed the whole industry. In good light this sensor produces really top notch video. Beautiful Canon / Nikon-like colour but with the resolving power of the best 4K cinema cameras. Great dynamic range too, although perhaps 1 stop less in the highlights compared to the GH4 and 5D Mark III Raw.
The H.265 codec on the Pro setting (highest) is 70Mbit/s 4:2:0. I confirmed this by looking at the file metadata. You benefit from a 30% space saving of 70Mbit compared to 100Mbit on the GH4, and that was already a very small file size for 4K. Here’s a full 4K frame, click to enlarge then drag to desktop for the 4K version…"
But as always no camera is perfect:
"The NX1 is the first Samsung I have ever wanted to keep. Serious photographic dealers have so far avoided them as have serious photographers. However for filmmakers especially, the NX1 is appealing. The 4K image it offers for $1599 is astonishingly good and in many ways better than the Panasonic GH4.
It’s a very serious camera for Samsung, but their job isn’t quite finished. The NX1 lacks the kind of filmmaker feedback clearly present in the GH4 and the broad range of codecs as well as advanced settings like master pedestal and luma-range (0-255). The GH4 will soon get V-LOG (Panasonic’s answer to S-LOG 2 on the Sony A7S) and I hope that Samsung consider a similar firmware update for the NX1.
If you only shoot with ONE camera and you need a full frame sensor along with astounding low light performance clearly the Sony A7S is still the way to go. But the NX1 arguably packs in the most advanced technology. Having an internal 4K codec in the NX1 sets it apart from the A7S in another way."
So, as you can see the NX1 is a great product, but for low light shooting the A7S can be a better choice and the GH4 should give you additional filmmaking options. Nevertheless the Samsung might improve in the future and it is already an awesome product that you should take into consideration.
For more info on the NX1 make sure to read the full review (here).