Thin rim filters are recommended for wide-angle lenses too, so no distinction in that respect. I wouldn't use them unless you have to - not much thread to begin with. Better to use a step ring and oversized filter. Those Heliopan "digital" filters are completely applicable to film photography. No difference with Hoya or B&W or Singh-Ray in that respect. But like I said earlier, exactly which variety works best with a specific color film under your own typical circumstances might require testing. Probably all of them will help with controlling UV per se, but to difference degrees, and with slightly difference color nuances, which I personally find very important at times. But regardless of manufacturer, I prefer reputable multicoated glass filters, with hard easy-to-clean coatings,