"
KODAK AEROCOLOR IV Negative Film 2460 is for general
use in medium- to high-altitude aerial-mapping and
aerial-reconnaissance photography. It is suited for
geological, pollution, archeological, crop and forestry
studies; traffic control; city planning; railway, highway, and
hydraulic engineering; oceanography; and remote sensing,
as well as other areas where photogrammetry is used.
"
Obviously Russia is doing a lot of the above so surplus film should be easily available. They also have capacity for cutting and perforating from wide rolls. I am not surprised if they spool it manually.
Sreda Photo Labs (SFL) is another Russian company that sells the same film but they are less secretive about it:
https://decisivemoment.com.au/kodak-aerocolor-125-120-film-sfl/
According to our local Australian supplier the film is fresh (produced in 2021).
https://sreda.photo/goods/aerocolor_120
At ~$9 per roll (when converted from Rubles) plus delivery this might be within your budget. The site says they have 182 rolls available. The film is manufactured in 2020 and the expiry date is December 2021. They ship internationally and accept PayPal.
I am waiting for someone to run tests and confirm this. I am almost certain that if you shoot the same scene on Silbera 50,100 and 160 exposing three frame at EI 50, 100 and 160, develop the negatives together and compare the results you would not be able to tell the difference between the three films. Extra bonus if Kodak Aerocolor 125 from SFL is also included in the tests.
Kodak Aerocolor is supposed to be developed using AN-6 process but can be processed in C-41:
https://www.kodak.com/content/produ...ls/KODAK-AEROCOLOR-III-Negative-Film-2460.pdf
Is anyone familiar with AN-6? How close is it to C-41? Does processing in C-41 affect colors, saturation, contrast and archival properties? Can C-41 film be cross-processed in AN-6?