A 'show-LUT' (Look-Up Table) is a predefined set of colour adjustments used in filmmaking and post-production. It's specifically tailored for a particular film or television show to maintain a consistent visual style.

While regular LUTs might convert footage from one colour space to another or apply a certain visual aesthetic, a show-LUT is developed for the unique requirements and desired look of a particular project.

In the context of cinematography and imaging, the ‘shoulder’ refers to the upper portion of a film or digital camera's characteristic curve in Standard Dynamic Range (SDR) formats. It represents the transition from the brighter midtones into the highlights, where the response to light begins to plateau or level off.

Standard dynamic range (SDR) has traditionally been the baseline for video and film content, preceding the innovations in high dynamic range (HDR) technology.

When it comes to monitors and televisions, SDR's brightness is limited compared to HDR. SDR typically measures up to about 100 nits in brightness, a contrast to HDR's potential to reach up to 10,000 nits.