>>3570492>>3570544Here's a before and after of a 50mm FL pinhole cap. The original hole took terrible images because it wasn't cleaned up. I took some 400 grit sandpaper and removed all the burs then used the 0.3mm drill to make sure the hole is round. The difference for the clarity helps a good bit it seems. IT also allows for shorter exposure times. The left is 6s exp and the right is 1.6s exp; both ISO100.