Hi,I'm looking for resources about all fuji film simulations: color science,  which one is better for which purpose...etc in order to customise mine as good as possible...I tried to search on Google but didn't find anything interesting.Thank you very much!

Try Fuji X weekly

Depends on if you’re looking for custom recipes/simulations, or info about the standard simulations built in.For custom recipes, here are a couple (I also second the recommendation for fujixwekly)-https://onecameraonelens.com Goto menu and click on which sensor recipes you’re interested in.https://www.sharkandpalm.com/photography-tips/fuji-film-simulations-best-recipes-for-portraits-street-landscape-and-moreShark and palm seems to use FujiXWeekly as a staring point.Couple sites that discuss the original simulations that come with the camera(s)-https://www.imaging-resource.com/news/2020/08/18/fujifilm-film-simulations-definitive-guidehttps://www.jmpeltier.com/fujifilm-film-simulation-differences/Hope that helps.

Little info from fujifilm:https://fujifilm-x.com/en-us/stories/beginner-month-4-camera-features-13-film-simulation-modes/Table containing various recipes (I am not the author):https://docs.google.com/spreadsheets/d/1VdpFEHIq3unspOSBEGa515GfcsZbBRG4f3UokZ0BJ1Q/editEdit:https://www.google.de/amp/s/www.bhphotovideo.com/explora/amp/photography/tips-and-solutions/your-guide-to-fujifilm-film-simulationshttps://www.imaging-resource.com/news/2020/08/18/fujifilm-film-simulations-definitive-guidehttps://www.fujirumors.com/fujifilm-x-pro3-development-story-classic-negative-film-simulation-learning-from-film/

ZioPepino wrote:Hi,I'm looking for resources about all fuji film simulations: color science, which one is better for which purpose...etc in order to customise mine as good as possible...I tried to search on Google but didn't find anything interesting.Thank you very much!If you had searched the forum for this thread topic you would have found many to review and research. The search function in this forum is your friend....more friendly than even google.

Thank you very much for all your answers! That's perfect!I'll definitely check dpreview forum better next time

Kevin Mullins has some pretty good settings:My Best Fujifilm JPEG Settings for 2020 (f16.click)

If you want some different film simulation looks, consider Totally Rad's Replichrome software.I used it mostly before moving to Fuji, but it's got some great film sims. They actually took different film stocks, then scanned them with a Fuji and a Noritsu scanner.  From that they created their simulations. They go beyond Fuji to include Kodak, Agfa, Ilford and even some lesser known stock.I got some great looks using them.