I was intrigued by this "semi-infrared" film. Its sensitivity to infrared wavelengths is not so pronounced as Kodak IR. However, results with a normal Wratten 25 red filter (as I have used here) suggest that it does not behave entirely as a normal panchromatic film either. It produces normal-looking negatives when exposed at 200asa without a filter.
The withdrawal of infrared films by Kodak and Konica means only Ilford, Rollei and Maco producing materials intended for this purpose.
The first five images are from the island of Anglesey (Ynys Mon), North Wales. The rest are nearer home.
All photographs © Simon J EvansSome links: