Today Sigma announces a highly compact camera with a full-frame sensor (in addition to lenses). It should be equally suitable for video and photo recording and support RAW recording in the form of 12-bit CinemaDNG -- "For raw video data, the SIGMA fp supports 12-bit CinemaDNG external recording". On the one hand Atomos Ninja Inferno and Blackmagic Video Assist 4K are mentioned as possible external recorders, on the other hand the 4:2:2 8bit limitation of the 4K HDMI-out signal is read in the specifications.
From our point of view, there is a lot to be said for recording the 12-bit CNG files on a small SSD (possibly via a later firmware update), which can be connected via USB 3.0 -- however, we will have to wait and see for more details. The camera records to SD/SDHC/SDXC card. The frame rates available in 4K/UHD are 24, 25 and 30p, in Full HD slow motion (frame rates up to 120p). Videos in H.264 can also be recorded.
The Sigma fp will be equipped with a 35mm Bayer sensor with 24.6 effective MP exposed at the back (so not with a Foveon sensor like the Sigma Quattro). In the technical data for the camera, however, a crop of 1.5 is mentioned, which will most likely be effective in film mode. Lenses are connected via L-Mount -- not surprisingly, after SIgma already announced at launch of the L-Mount Alliance in autumn that it was working on a corresponding camera. Accordingly, the choice of optics is still very limited.
An HDR function combines 2 (video) or 3 (photo) different exposures to a clip or image with higher dynamics. When filming, functions such as focus peaking and timecode are available. Electronic image stabilization can be switched on. There are various image profiles, including the classic Hollywood look "Teal and Orange".
The housing is made of a cast aluminium alloy and should dissipate heat well and be weatherproof. With dimensions of 112.6 × 69.9 × 45.3mm the camera is very portable, the weight is 370g plus battery and memory. A microphone can be connected, a headphone output is not on board. The touch LCD is permanently mounted (not fold-out).
Unfortunately Sigma doesn´t mention a price for the small RAW camera yet, but the fp will be released in autumn.