I made some improvements to my brew. After small changes in the basic formula and more perturbations in the dilution level and development time I have arrived at something, here. Looks more reasonable and pleasant, visually. Over several days last week I took these pictures around the neighborhood with the Fed 2 and Industar 26M, restored at home. This lens is impressive despite the cleaning scratched made by some previous owners. At times, I wonder if some people use sand paper to clean the lens! Here are some samples.