Trichromy - RGB color separation

[Uncle Fester]

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 #330-08037-positive-trichrome.jpg by dourbalistar, on Flickr

Very nice! It would appear that Kentmere 400 is also a very good color film!!!🙂🙂🙂

 

[EarlJam]

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.

 

[dourbalistar]

Very nice! It would appear that Kentmere 400 is also a very good color film!!!🙂🙂🙂

Haha, thank you, @Uncle Fester! Using Kentmere 400 for color might even be cheaper, especially with color film prices these days! 🤑

 

[Sonnar Brian]

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.

 

[dourbalistar]

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

 

[dourbalistar]

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

 

[dourbalistar]

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

 

[dourbalistar]

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

 

[dourbalistar]

It was slightly overcast during the red and green filtered frames of this trichrome, but the sun broke through just before the blue filtered frame. Instead of trying to recalculate the exposure to compensate, I just carried on to see what might come out. Looks kinda like... Lomochrome Purple?

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 #330-08063-positive-trichrome.jpg by dourbalistar, on Flickr

 

[dourbalistar]

Near Piracy Point, 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 #331-08030-positive-positive.jpg by dourbalistar, on Flickr

 

[dourbalistar]

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.


2024.02.25 Roll #351-08565-positive.jpg by dourbalistar, on Flickr

 

[dourbalistar]

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.


2024.10.14 Roll #366-09001-positive-trichrome.jpg by dourbalistar, on Flickr

 

[dourbalistar]

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.


2024.07.29 Roll #361-08811-positive-trichrome.jpg by dourbalistar, on Flickr

 

[dourbalistar]

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.


2024.10.14 Roll #366-09019-positive-trichrome.jpg by dourbalistar, on Flickr

 

[rfaspen]

I think these are " totally awesome". I want to give it a try.

 

[dourbalistar]

I think these are " totally awesome". I want to give it a try.

@rfaspen, give it a... "tri". 😎

Jokes aside, here are the (52mm) filters I bought from B&H. All relatively inexpensive, but I see the green filter is special order item (Expected availability: 2-4 Weeks).

https://www.bhphotovideo.com/c/product/54250-REG/Tiffen_52R25_52mm_Red_1_25.html

https://www.bhphotovideo.com/c/product/54413-REG/Tiffen_5258_52mm_Green_58_Glass.html

https://www.bhphotovideo.com/c/product/54324-REG/Tiffen_5247_52mm_Blue_47_Glass.html

 

[Freakscene]

I think these are " totally awesome". I want to give it a try.

Agree. I’ve said it before

Post in thread 'Ultrafine Xtreme Black & White Film ISO 400'

Aug 24, 2020

Some call it tedious, I call it fun. Some might call it Type II fun. Either way, isn't that what photography is all about? Fun and experimentation? 😉

I *love* these.

I have also never seen colour film with hue reproduction as accurate as a trichrome.

Marty

• Freakscene

but why not say it again. These are amazing.

 

[rfaspen]

Well, I have a ton of various colored filters of various sizes in my "photo accessories stash". Good chance I have the filters. I definitely have the cameras. I even have a good reserve of BW film and developing chems. Now to find some time and see what software I might use. I have some image processing softwares from my remote sensing work (satellite imagery) that might work well. I think time is the limiting factor....so many cool things I want to do. Need to get back to doing cyanotypes too (Pt/Pd is just too spendy for chems now).
Thanks for the encouragement. Makes it more likely I'll find some time.

 

[dourbalistar]

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.


2024.10.14 Roll #366-09023-positive-trichrome.jpg by dourbalistar, on Flickr