Trichromy - RGB color separation

My dad came of age in the Technicolor era and experimented with color photography in high school. He modified an old Kodak folder for two color (bi-chromy?) photos and then worked on his technique until he was drafted in early '42. Later in life, he had a collection of various Curtis and Devin one-shot cameras up to 5x7, but never shot with them.
DSC_0174.JPGDSC_0172.JPG~1938_George_0002.jpg~1938_George_0001.jpgPaula_color_1940.jpg
 
Looking at the Trichrome images posted this week- amazing that this is from B&W film from a Nikon FM. Really is like a scene out of an older Technicolor Movie, or old National Geographic. "Modern" color from digital cameras and film looks exaggerated in contrast and saturation.
 
Looking at the Trichrome images posted this week- amazing that this is from B&W film from a Nikon FM. Really is like a scene out of an older Technicolor Movie, or old National Geographic. "Modern" color from digital cameras and film looks exaggerated in contrast and saturation.
Thank you, @Sonnar Brian! The hikers moving along the trail left some interesting colors in this image.

Nikon FM2n, AI Nikkor 50mm f/1.8S, Kentmere Pan 400, developed in LegacyPro L110 at 1:31 for 5.5 minutes. Three individual black and white frames shot through Tiffen #25 Red, #58 Green, and #47 Blue filters, respectively, then combined using GIMP to create a trichrome color image.


2023.04.13 Roll #330-08040-positive-trichrome.jpg
by dourbalistar, on Flickr
 
Another trichrome from Bryce Canyon National Park, this one take at Upper Inspiration Point.

Nikon FM2n, AI Nikkor 50mm f/1.8S, Kentmere Pan 400, developed in LegacyPro L110 at 1:31 for 5.5 minutes. Three individual black and white frames shot through Tiffen #25 Red, #58 Green, and #47 Blue filters, respectively, then combined using GIMP to create a trichrome color image.


2023.04.13 Roll #330-08049-positive-trichrome.jpg by dourbalistar, on Flickr
 
Later in the day from the post above, around golden hour at Bryce Point.

Nikon FM2n, AI Nikkor 50mm f/1.8S, Kentmere Pan 400, developed in LegacyPro L110 at 1:31 for 5.5 minutes. Three individual black and white frames shot through Tiffen #25 Red, #58 Green, and #47 Blue filters, respectively, then combined using GIMP to create a trichrome color image.


2023.04.13 Roll #330-08053-positive-trichrome.jpg by dourbalistar, on Flickr
 
Queen's Garden Trail, Bryce Canyon National Park.

Nikon FM2n, AI Nikkor 50mm f/1.8S, Kentmere Pan 400, developed in LegacyPro L110 at 1:31 for 5.5 minutes. Three individual black and white frames shot through Tiffen #25 Red, #58 Green, and #47 Blue filters, respectively, then combined using GIMP to create a trichrome color image.


2023.04.14 Roll #331-08011-positive-trichrome.jpg by dourbalistar, on Flickr
 
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