Thanks for your reply, Saijin.
I actually ask on behalf of my teenage daughter who is into photography.
She liked the look of IR images so I bought her a Hoya filter. When, however she comes to process her images with Affinity, they look nothing like expected.
I'm a bit old fashioned and would want to turn to a manual for help but the only one available is £30 and may not even cover the subject of IR.
On Googling, all we can find is tutorials, help and advice using PHOTOSHOP or LIGHTROOM, not Affinity.
My question is: If IR images can be processed with Affinity, how is it done? A step by step guide would be great, and would save me forking out for PHOTOSHOP, which is what my daughter now wants!