Does anyone have an exact measurement of 16x20 film? I’m ordering some from Astrum and I just want to make sure I get the right measurements. I’m fairly certain it’s 404 x 505 mm but I just want to confirm.
Which is expected, since Zebra is building them for glass plates. Put a film sheath inside that, and you'll reduce the cut film dimensions by a couple millimeters each way. With 4x5 instead of 102x127 the film is actually 100x125 mm. I'd expect the same reduction in 16x20, giving 404x506 mm -- but I've never handled actual 16x20 film or film holders.