[RGBI files and infrared dust/scratch removal?]

Thanks, NMF & Lisbon. I appreciate your thoughts and resource pointers. I've only used Vuescan and Affinity Photo casually until now, and it's time to dig in. Since I'll be scanning (all too) many slides, I want to understand things thoroughly before I get rolling. 

[RGBI files and infrared dust/scratch removal?]

Hi - I've attached an RGBI file, scanned at 3600dpi to reduce size. If AP can read the scanned infrared channel as an input for its dust & scratch filter, I'd like to compare that result with using AP's own filter.

Thanks very much.

scan0003.tif

[RGBI files and infrared dust/scratch removal?]

I'm starting to scan many color slides using a Plustek 8200 AI scanner. I want to scan in RGBI so that the infrared dust information is preserved (I channel).

Will Affinity Photo use the I channel info for dust removal? If so, how would I do this? I've searched and found nothing on point.

Mac Mini 2018 (Intel), 64GB, 2TB, RX 5700 XT GPU, Monterey 12.5.1, AP 1.10.5, Plustek 8200 AI, Vuescan 9.7.90, RGBI TIFF output files.

Thanks for any info you can supply.