posted on Jan, 13 2020 @ 06:35 AM
Yes although as already stated, citation or evidence required. Film scanning is pretty accessible today, it can be done by a local shop or by yourself
for as cheap as $40 for a scanner (Albeit crappy)
So Throw up some of these said photographs.
Now the other thing is that Leica lenses are well designed, they don't have some magical or extra filtering of wavelengths outside that of the optical
range to prevent aberration. Why? well UV is largely filtered out depending upon the amount of humidity in the air, the haze is readily removed by the
addition of a primary filter, which was common practice during the film era to have a set of filters depending upon conditions. Largely coatings on
the glass have been the only thing that has changed through the years. IR photography is also a thing, and many lenses have markings for the
difference in DOF when shooting on IR sensitive film.
The key is completely design coupled with very high quality glass.
Its kind of like when in the 70s/80s Vivitar stormed onto the scene, producing their Series 1 lenses. The fun thing about those was they were some of
the first lenses designed using computers to take care of the optical modelling. The resulting designs where a bit different from the norm but where
able to produce high quality lenses in comparison to OEM lenses from Nikon or Cannon for example, while keeping costs low.
They did obviously get ahead of themselves and fold in the 90s as they reduced quality and didn't keep up... but still one of their 105mm Macro lenses
is still considered one of the sharpest lenses in the world.
Similarly the old Konica Hexannon 50mm lenses were very well designed and ridiculously sharp wide open.
Anyway... on a optical area denial in terms of photography, you could easily achieve this via UV and high intensity IR lamps that shine on a target.
It wouldn't be visible to the eye, but would cause some level of extra exposure to the film, depending upon the distance and atmospheric conditions.