High resolution format between 4K and 8K with approximately 6000 horizontal pixels.
Definition
6K refers to a digital resolution of approximately 6000 pixels in horizontal image width. The most common 6K standard is 6144 x 3160 pixels, which corresponds to a total resolution of around 19.4 megapixels. This resolution is 2.25 times higher than 4K (Ultra HD), offering significantly more image detail and flexibility in post-production.
6K footage allows for final delivery in 4K or Full HD, while simultaneously providing room for digital image stabilization, reframing, and cropping without suffering quality loss. This is particularly valuable for documentary work or situations where post-production image adjustments are necessary.
Practical Application
Modern cinema cameras such as the RED Dragon, ARRI Alexa LF, or Sony FX9 offer 6K recording. However, the high resolution requires corresponding storage capacities and processing power in the workflow. One minute of 6K footage can occupy between 8-20 GB of storage space, depending on the codec.
Technical Details
6K footage typically uses RAW codecs or high-quality compression methods like ProRes 422 HQ. The color depth is usually 10-16 bits, enabling an extended dynamic range and more precise color grading. Specialized monitors and powerful workstations are required for playback.