Brilliant. Thank you so much for such helpful comments and suggestions.
Yes, if been looking at the lenses by Fujifilm, Samyang and TT/7artisans among others and there appears to be plenty of choice. Try before you buy would be ideal but I don't think there's any retailers near me.
And sorry, should have added I'm using Mac OS (Monterey). I'll have a look at the software you mentioned. Thank you 👍