Did many pros do their own processing?

[tomkatf]

In my experience, working pros no... all processing sent out. Time was better spent shooting or finding work. "Fine Art" photographers, yes... printing, in particular was part of their shtick.

 

[Sirius Glass]

As an amateur it takes too long usually to collect enough exposed rolls for a batch so I send it out. The result is that I do not have to spend several days printing out all the prints on the roll just to review them.