Response to Spotting

Some enlargers, especially condensors, will get dust on the glass elements which show up as spots. If the dust spot is repeating itself from neg to neg then it is in the enlarger. Remove the head and clean all the elements you can get to. Vacume the glass and wear gloves. I spent weeks trying to find the source of a streak on my prints only to remove the enlarger head (Omega D2) and discover a small piece of scotch tape had dryed up inside and fallen onto the glass. Also got rid of a lot of dust. BTW: the tape was from a cardboard shim to hold the glass level, after thirty years it dried up and fell away onto the glass.

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