A LUT (Look-Up-Table) is simply a table of fixed numerical values that can be applied to video to alter its look. It can change an image’s contrast or colour or both. 1D LUTs are the simplest, each input value mapping to a single output value, while 3D LUTs are more sophisticated and can apply to a co-ordinate set of colours.
A LUT or Look-Up Table makes it easy to apply a wide variety of different looks to your video content. It’s often used when shooting RAW or log content, which may initially look quite flat but contains large amounts of information for post-production creativity.
There are “technical” LUT’s that are used to convert between different television standards, perhaps from S-Log3 to Rec-709 as well as creative LUT’s that can be used to create an almost endless range of different visual looks and styles.
These LUTs are designed to provide an easy starting point when colour grading for a typical broadcast TV workflow. Originally developed to exploit the exceptional colour reproduction and latitude of the F65 and F55, they are also useful for subsequent large format sensor cameras including FS7/FS5 Series.
Look Profiles are provided as 3D LUT files to apply with colour grading tools. They support RAW, SR File, XAVC and MPEG2 workflow.
Sony created these LUTs for on-set monitoring while shooting, as well as for clip review afterwards. Developed alongside VENICE and also applicable to FX9, s709 renders imagery in subtle colours, with smooth colour gradation and a softer low contrast tone curve. s709 is close to the film colour characteristics, and allows directors, DOPs and cinematographers, to have the final film look characteristics on location while shooting.
Alister Chapman’s Blockbuster LUT replicates the stylised look of many modern blockbusters by not just increasing the luminance contrast, but also using complementary colours that are opposite each other on the colour wheel. To download this LUT for yourself, and find out how Alister developed it and shot the promotional video, please click the link below.
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