For patch generation and LUT testing the Fuji IS-mini is hard to beat for sub-£1k. LightSpace will drive it for profiling monitors and since it has both HD/SDi and HDMI outputs it is very useful all the way to 1080 lines at 60P.
The software that comes with it is kinda utilitarian but can speak to multiple IS-minis over either USB or ethernet. So you can load LUTs to several units from a single computer and it will even listen to the commands from a Tangent Wave control panel and you have a very canny little grading system (all be with no memory!) - but for live colour correction it is used everywhere from HDR cameras feeding BT.1886 productions to folks who need to correct for unusual cameras in an otherwise standard OB environment.
Having said all that it isn't a patch (pardon!) on LightSpace but they have just released an unlocked beta that feature colour space conversion LUTs which might be of interest to general colour-tinkerers.
From Fuji's site;
The rapid adoption of 4K Rec2020 and the development of HDR has necessitated an increased need for colour space conversions, such as color gamut, various LOG curves and numerous other standards. As requests for products to handle this have increased, FUJIFILM has begun to develop a system for IS-mini users that will allow greater flexibility with colour spaces.
And the obligatory bullet points;
- Convert the content of Rec709 to Rec2020.
- Convert the image data of SLog3 / SGamut shooting to HDR ST2084 / Rec2020.
- Convert Legal range to Full range
- Convert the image data of the various cameras to SLog3 / Rec2020. etc...
Grab it here.