Fig. 5: Contemporary B&W photographic before and after stimulated microorganism contamination.
From: Effect of microbial contamination of black and white photographic negative films on developed photos
(a) The contemporary B&W photographic negative film without microorganism contamination; (b) the developed image using the B&W photographic negative film shown in Fig. 5a; (c) the model B&W photographic negative film covered with the lens wiping paper to stimulate homogeneous microorganism contamination; (d) the developed image using the model B&W photographic negative film showing in Fig. 5c.
