Given what Alex has done there Troy it looks like your data is relatively sound, in fact I think you have revealed more extensions and more detail than the Aero Ekta lens did. The individual circular frames of old B&W film data look to have suffered from vignetting and thus without the modern technique of flats available to them and after mozaicing the circular frames together the faint extensions are probably not complete..?
Nice work and another example of why
THIS may well not make me a deluded emperor
MIke