The popular developers for Tech Pan here are Technidol, Diafine (according to Gene Crumpler), Xtol, and some Photographer's Formulary soup I can't remember. I use Technidol. I've heard that you can use really diluted Rodinol (1:50, 1:100?) to achieve near-normal contrast -- so you might try using a really weak dilution of the most compensating developer you have.(posted 9093 days ago)In "The Negative," Adams doesn't report getting any lower than N+1 with this film: so if you can achieve that, you're doing as well as any of us.