Quote Originally Posted by piu58 View Post
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You don't reach grade 5 with dichroitic filters.
This not correct for all enlargers. Some can do it easily such as my Durst L1200 and others can't such as some LPL units. And paper needs to be new on any enlarger. Year old paper can easily lose a grade of contrast, especially if not kept well. i.e. too hot or in darkroom with all those fumes floating around.