View Full Version : Dallmeyer lens

John Dorio
16-Nov-1998, 14:12
Does anybody know old a lens can be if it is coated ? And does anybody know just how good a Dallon Dallmeyer tele anastigmat lens is ? It is 12" f/7.7 and is in an old Compur shutter. Can it be much worse than a modern tele lens ?

Ron Shaw
16-Nov-1998, 15:30
If its coated, its probably post WW2. Most LF shots will use a lens stopped down to F22 or more, so it will probably be diffraction limited, so sharpness will be similar to a modern lens in that case.