I got a 150mm with the enlarger about 2/3s of the way up I manage a 5x7 from a 6x9 negative. I might even get a 8x10 out of it if I lower the enlarger off the table. Considering the 6x9 is close to 50 years old and comes with guess focussing 8x10 is good enough. I'm kind of surprised at how good the old camera does.