Interesting. I've actually used 35mm color infrared film to make images and your explanation was spot on. Was a pain to obtain the film and filter but fun to use at work and to play with. I don't miss having to use that wet chemistry to develop the images. I love digital imaging!
Fantastic results! I remember when I started fiddling with the Aerochrome look I did something similar to this, although instead I used two exposures: one in visible light, from which I'd get my red and green, and then one with a 720nm filter for the infrared. I do love the ghosting effects you get from doing it as a proper trichrome, though.
sick! i noticed most ir trichromes methods give orange-ish colors. method i use (old blue & green color filters that need a polarizer to 'intensify' the color and an ir72) gave me bright bubblegum pinks, so while not as accurate as yours still fun. will have to try this ir cut filter method
It will be perfect if someone creates a device that automatically swaps the filter, advances the films and fires a shot 3 times in a row as fast as possible
You're also the first person that I have seen who has taken into account that a red filter is a longpass filter that would pass IR too. I hadn't considered that a green filter could be shaped by a yellow as well to better match the sensitivity curve of EIR, but that is excellent work. I'm going to read your blog in a minute but have you considered taking into account the sensitivity curve of the film too? Your actual sensitivity would be the convolution of all the spectra of your filters and also the sensitivity curve of the film.
Wow , incredible results ! I really like the one at 0:03 ! Just wanted to know which filter and film you used (apparently ilford SFX ? Does it have particular characteristics compared to other IR films ?)
i have already done one roll od rollei infrared with trichrome but unfortunately i don't have yellow and ir cut filters so i try classic trichrome where i swap only red to IR also i try home shoots ith IR flashlight, if everythink will be good i will try to create some picture of wwii soldiers at LSD or something and other old style shoots, in future i will try your set up with IR cut filter and make pink grass
