charjohncarter
Veteran
Ah, now I understand! I happen to have a PB-4 bellows and it came with a slide copier I had no use for (I rarely shoot slides). But now I can use it - thank you.
Something called 'light piping' is a real problem that is why I used a closed system(bellows) for 35mm. 120 was a different story; 'light piping' sent me to a scanner.