Originally Posted by Photo Engineer
You can sometimes distinguish coating pinholes by their comet shape. This is a dot as Mirko describes but with a tail.
This is a very distinct and recognizable coating defect. If it is not comet shaped, then the defect has a lower chance of being a coating defect and a greater chance of being something else.
Ah, perfect - thanks. Exactly what I got on my last two batches of Foma 200 in 35mm and 120.