One could say Blighty that God shone on Yorkshire first as it's further East, and dank Lancashire needs longer to awake from its slumbers. Perhaps we shouldn't re-open the wounds of the Wars of the Roses :-) To our US friends these took place a few hundred years before the American continent was re-discovered.

But actually a bit of condensation usually occurs in condensor enlargers in our dismal British climate, so it's worthwhile turning a condensor enlarger on half an hour before you want to use it to allow the heat to dissapate any condensation.

Back to the original post I can't believe that its not possible to clean the lenses, having asked around I can't find anyone near me with a Vivitar enlarger but there must be a way to clean them

Ian