The pigment based epson c13t850700 light black ink cartridge achieves superb black and white photo quality you can easily produce black and white photos with better details and gradation levels using the light black epson c13t850700 ink which delivers better contrasts the epson t8507 light black ink is formulated using ultrachrome hd technology a pigment ink with exceptional lightfastness users can achieve a higher dmax with the epson t8507 light black cartridge