HDR10 Up & Down Nits Conversions v1.0

HDR10 Nits Conversion Luts - SALE.png
HDR10 Nits Conversion Luts - SALE.png

HDR10 Up & Down Nits Conversions v1.0

500.00

The Mystery Box HDR10 Up & Down Nits Conversions LUTs are a set of LUTs designed to manage brightness adjustments in HDR10 while maintaining contrast. We've labeled them according to how they affect the peak nits brightness of the image.  For instance, applying the 1000 nits to 2000 nits LUT will scale content prepared on a Sony BVM-X300 up in brightness by exactly one stop, evenly across the entire brightness range so the apparent contrast remains the same.

There are eighteen LUTs in this pack:

  1. MBOX HDR10 1,000 Nits to 2,000 Nits
  2. MBOX HDR10 1,000 Nits to 4,000 Nits
  3. MBOX HDR10 1,000 Nits to 10,000 Nits
  4. MBOX HDR10 400 Nits to 1,000 Nits
  5. MBOX HDR10 300 Nits to 1,000 Nits
  6. MBOX HDR10 120 Nits to 1,000 Nits
  7. MBOX HDR10 100 Nits to 1,000 Nits
  8. MBOX HDR10 10,000 Nits to 1,000 Nits
  9. MBOX HDR10 4,000 Nits to 1,000 Nits
  10. MBOX HDR10 2,000 Nits to 1,000 Nits
  11. MBOX HDR10 1,000 Nits to 400 Nits
  12. MBOX HDR10 1,000 Nits to 300 Nits
  13. MBOX HDR10 1,000 Nits to 120 Nits
  14. MBOX HDR10 1,000 Nits to 100 Nits
  15. MBOX HDR10 1,000 Nits to Gamma 2.4
  16. MBOX HDR10 400 Nits to Gamma 2.4
  17. MBOX HDR10 300 Nits to Gamma 2.4
  18. MBOX HDR10 120 Nits to Gamma 2.4

PQ is a display referred transfer function, so theoretically brightness ranges should not be scaled during color grading.  However, in practice applying a LUT to the image that scales down brighter values allows a colorist to bring the brightness of an image into the dynamic range of their display with identical contrast to that of a brighter display, and therefore be able to grade with a wider range of peak brightness ranges than would typically be offered on a dimmer display.

For instance, this would allow the Sony BVM-X300 to grade content as if it had the peak brightness of the Dolby Pulsar by scaling 4000 nits peak to to the 1000 nits of the BVM-X300, while maintaining contrast across the entire image.  Or, it may be used as a starting point for Dolby Vision passes at lower peak brightness levels, accomplished through scaling the entire image contrast.

Also included in this LUT pack are a series of hard-clipped direct conversions from HDR into SDR.  The nits rating indicates the clipped value.

We can’t understate how many hours of work these conversion LUTs have saved us and how they maintain authorial intent during the change in brightness operations.

For a demonstration of how the LUTs work and the problems they solve, visit our blog post here.

 

These LUTs are licensed for use in a post-production setting for applying to assets prior to the assets distribution.  If you are interested in incorporating these LUTs into HDR encoding, distribution, or exhibition technology, please contact us for more information on licensing.

 

Add To Cart