Many users of the Lubekin set for 35mm in the Lubitel 166+ complain that their negatives come out scratched. This quickie tipster tells you how to fix that problem!
The method used for casting moulded plastic has a drawback in that it can leave excess plastic on the resulting product. This excess is called flashing in modeling circles.
My Lubekin was doing exactly this. I discovered that this was the problem by lining up a spoilt negative with the base part of the Lubekin (make sure you have both aligned as they would be in the camera).
There was flashing on the raised bit of the Lubekin, scoring a straight line in the negative as it was wound against it.
The solution is simple, you need a very fine file, so as not to make the problem worse, and very gently, just file these back until the edges of the raised areas are all nice and smooth.
Once you’ve done this, you’ll get a much better result.