I always love to see the results with aerochrome but I never had a chance to get it and go out for shooting, recently taking with the photographer Dave Tacon https://www.davetaconphotography.com/ he told me that he started a project called China – Vietnam border that I was very impressive about that, since the results come pretty outstanding.
The 645NII is a really great camera with some serious capabilities. It feels like a K-3 or K-5. It’s not meaningfully larger, given that it’s a medium-format camera. It’s also not a whole lot heavier, even with six AA batteries in the grip. The only odd things about it are that what DSLR users will think of as the on-off-DoF preview button is the drive mode button. The on-off button is in the back. One great thing about the on-off button is that the chirp is in the middle, so it’s easy to switch just to on.
The History of Aerochrome
Aerochrome was a false color infrared film packaged in formats not seen today. What was the primary reason? These rolls of film would be loaded into airplanes and helicopters for various purposes. The Department of Natural Resources and The National Park Service used the film to survey vegetation. Chlorophyl from the vegetation reflects infrared light. Aerochrome is sensitive to the color spectrum and infrared light. With the right filter color, you can filter out a spectrum of color which yields these red/magenta colors. The healthier the vegetation, the more vibrant the colors. The film was also used as a form of aerial surveillance to filter people attempting to camouflage themselves in the woods.