Ilford Ortho Plus 80 135-36

ILFORD ORTHO Plus black and white film was originally designed as a high-resolution copy film, however it is suitable for other in camera applications including high quality portrait and landscape photography. The blue and green sensitivity enables the film to be handled in deep red safelight and allows processing by inspection where required.

For copy work this versatile film allows you to fine-tune the contrast by the choice of developer, the exposure given and the development time making it possible to achieve an accurate reproduction of most black and white originals, or to maintain a clean background in copies of combined line and continuous tone originals. 

For use as a high-resolution camera film, Ortho Plus can be processed to pictorial contrast. Its lack of red sensitivity is often unimportant for many subjects and can even give an unusual / desirable effect to images having red or orange hues (reds appear much darker than normal).

Specs

This and more information can be found in the technical datasheet which is available here