I tried Polopan 20 yrs ago. Looked at slides last year & they were deteriorating - may have been due to improper storage. Understand that Polaroid is dropping the film (though still listed at their web-site). I now use Agfa Scala for b&w slides. Direct printing to paper same as color slides. Supposedly, all b&w negative film can be processed for slides (see http://www.dr5.com/main.html dr5 chrome process)