I just got the R.H.Phillips 11x14 Compact series. The full bellow extension is 30.5 inches. I'm looking for my first lens for all purpose. Any recommendation is appreciated. My narrow list are Nikon 450mm, G-Claron 355mm, RD Artar 19". I just order the HP5+ film. I'll use the Pyrocat HD on tray for Platinum and Lodima or normal contact print on FB paper. What grade of Lodima should I test to get the density that work best with Pt/Pd? Starting time, dilution to try on tray.