I have an old oscilloscope lens, its a Woolensak 75mm f1.9. Pretty fast but the old Alphax shutter only stops down to f16 so limited depth of field. It covers 4x5 easily for close up work (1:1) but just about 6x7cm at infinity and was not sharp across the plane only in the center

I makes a good copy lens but with the limited depth of field not all that useful for macro work.

Mike