The Delta line is Ilford's flagship film line. Core-Shell™ crystal technology results in excellent sharpness, very high resolution and very fine grain at higher sensitivities. Good negative characteristics. Delta 100 has a bit better sharpness and higher resolution than PanF+. But PanF+ has a bit finer grain.

Delta 100 surpasses in many developers T-Max 100 and Acros II 100 in contour/edge sharpness. It is also significantly sharper, higher resolving and finer grained than all ISO 100/21° films with conventional grain technology like e.g. FP4+, Kentmere 100, Fomapan 100 etc.

The characteristic curve of Delta 100 can be well controlled by the choice of developer. E.g. with Ilford DD-X, XTOL or Tetenal Ultrafin T-Plus you get a very linear characteristic curve. And with a compensating developer like ADOX ATOMAL and ADOX FX-39 II you get a characteristic curve with the compensating effect resulting in lower densities in the highlights. From a technological point of view Delta 100 is one of the best films in Ilford's film portfolio.