TIFF
TIFF is a compression format that does not lose any information about the photo’s data, either. TIFF files are much larger in data size than JPEG or RAW files. TIFF is a more common format in graphics publishing or medical imaging than it is with digital photography, although there are instances where professional photographers may have a project where a TIFF file format is required. Very few cameras have the ability to record in TIFF.
https://www.lifewire.com/differences-between-jpeg-tiff-and-raw-493186
Julian advised me in the last session to convert my files to tiff before I sent them to the printers, I have done a little bit of research just to understand it better and know for future reference. Tiff files do not compress data so its perfect for printing as formats like .jpeg compress data and when printing, especially larger sizes like A4 and A3 it is essential you don’t love any data, its the same as how 720p video quality may not look that bad on a small monitor but on a 50″ TV the cracks will definitely be starting to show.
Shades of the City 