PAN F PLUS at ISO 50 is the slowest of the ILFORD films, but when image quality, fine detail and lack of grain are more important than film speed, PAN F PLUS excels. Suitable for subjects ranging from architecture to still-life and portraiture to medical. Mural size enlargements from PAN F PLUS negatives show an outstanding range of tone and detail when the film is carefully exposed and processed. For scientific, technical and copying applications, PAN F PLUS can be developed to a higher contrast.
For sample photos of what this film is capable of, see here: https://www.flickr.com/groups/542754@N24/
Image Credit : https://mrleica.com/ilford-pan-f-50-film/