From half format to 6x7, I'm using Fujimoto G70 with El-Nikkor 50/2.8 & 80/5.6. From 6x9 to 9x12, I have a Lisesagang Rajah IV with Componon-S 135/5.6. However, I'm working on converting the Rajah to take 4x5" negatives and replace the light bulb with LED light.