@yrhenwr well i got hold of some very old film, this was agfa ct-18 which was a colour film that the developer is no longer available for, so i shot it and developed in black and white chemicals. I scanned the negatives as colour -positive and then inverted in photoshop, which gives the cyan colours. Had to do lots of work on them to make them presentable as most of the shots had very little contrast. shot with fujica st701 using extension tubes. you can see other shots from the roll here https://www.flickr.com/photos/34602192@N05/albums/72157689625033692 bottom of the page