To use Prelight, you need:

  • macOS 10.12, 10.11 or 10.10
  • iMac, MacMini, MacBook Pro or Mac Pro with the following minimum specification:
    • 1GB GPU memory
    • 8GB RAM

SDI input/output devices

  • AJA IO Express
  • AJA IO-4K (also supports frame capture and SDI metadata extraction)
  • AJA Kona 3G
  • AJA Kona 4
  • AJA T-Tap
  • Blackmagic Design UltraStudio 4K
  • Blackmagic Design UltraStudio Express
  • Blackmagic Design UltraStudio MiniMonitor
  • Blackmagic Design UltraStudio MiniRecorder

Control surfaces

  • Tangent Element Tk, Bt, Kb
  • Tangent Ripple
  • Tangent Wave

Support for third-party devices

Prelight On-Set can generate LUTs suitable for the majority of professional LUT boxes and cameras and load them directly to provide the closest LUT approximation for live preview. Supported devices include:

3D LUT devices

  • ARRI Alexa SXT
  • Blackmagic Design HDLink Pro
  • FSI BoxIO
  • FSI DM-series monitors
  • FUJI ISmini (Ethernet/USB)
  • OffHollywood OMOD
  • Pandora Pluto
  • Teradek COLR
  • FilmLight Truelight On-Set (discontinued)


  • ARRI Alexa SXT, Alexa Mini & Amira
  • Panasonic Varicam 35 (future update)


  • Flanders Scientific, Inc. DM series

These devices can be managed as groups within channels, with simultaneous updates being actioned by the Prelight application.

Grade tools

Prelight supports authoring with the full set of Baselight primary and secondary grading tools and these tools behave identically to a full Baselight system, including spatial operations and all applicable inside/outside mattes produced by sophisticated keyers. Specifically this includes unlimited layers of:


  • Blur/Sharpen
  • CDL Grade
  • Curve Grade
  • DeFuse
  • Film Grade
  • Glow
  • Grain
  • Hue Shift
  • Look
  • Six Vector
  • Soften
  • Truelight
  • Video Grade


  • Shapes (freehand as well as presets for adjustable edges, corners, spots, vignettes)
  • Matte RGB
  • Hue Angle
  • DKey (view-only)

All grades are processed inside a framework that manages the necessary colour space transforms to ensure repeatability and consistency when the grades are applied anywhere else in the chain.

And, of course, additional grading functions will be added to remain consistent with the current Baselight release - such as the Base Grade in Baselight 5.0, which brings a completely fresh approach to colour grading with a more natural, photographic way of working.

Image analysis

The application has numerous tools to enable the quality of an image to be assessed at-a-glance:

  • Histogram
  • Vectorscope/Chromaticity
  • Y’CbCr Parade
  • RGB Parade
  • Luma Waveform
  • Colour picker
  • Wipe comparison

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