Editorial
In the Print Lab: A Year With Platinum-Palladium
Petra Jansen · December 21, 2025

Petra Jansen reflects on the first year of Lumen's quarterly Platinum-Palladium Open Lab.
When we relaunched the Alt-Process Open Lab a year ago, I budgeted for forty contact prints across the four sessions. We made over four hundred.
Some lessons: small groups beat large ones. Three coats is rarely better than two. And humidity matters more than anyone wants to admit.
The 2026–27 schedule is up.