I just remembered I have a cosmetically-challenged 120mm WA Rodagon sitting on a shelf. Optically it appears to be perfect. I've seen reference that it's optimum magnification range is 4-15x. I don't want to use a wide-angle on any enlargements but this is close enough to normal for 6x12cm. Has anyone used this lens for 25-30x enlargements with 6x12cm? If so, how was the sharpness and contrast center-to-corner? Yes, I can test it... eventually.