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by SantaFeJoe on Tue Feb 05, 2019 1:55 pm
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https://kolarivision.com/product/kolari-vision-ir-chrome-lens-filter/

https://petapixel.com/2019/02/05/this-lens-filter-faithfully-recreates-the-look-of-kodak-aerochrome-ir-film/

https://kolarivision.com/the-irchrome-infrared-photography-filter-our-digital-version-of-kodak-aerochrome/

Joe
Learn the rules like a pro, so you can break them like an artist.  -Pablo Picasso
 

by E.J. Peiker on Tue Feb 05, 2019 2:54 pm
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Needs spectral response curves to really understand what is going on with this filter.
 

by SantaFeJoe on Tue Feb 05, 2019 6:32 pm
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More here:

https://kolarivision.com/recreating-a-classic-yann-philippe-the-ir-chrome-filter/

Joe
Learn the rules like a pro, so you can break them like an artist.  -Pablo Picasso
 

by E.J. Peiker on Tue Feb 05, 2019 6:42 pm
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It's 550nm which basically lets a slither of green, all of yellow, orange and red through in addition to IR. All of the images in the above links have been red/blue channel swapped in processing, which is standard procedure for most color IR.
 

by SantaFeJoe on Tue Feb 05, 2019 8:04 pm
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E.J. Peiker wrote:
All of the images in the above links have been red/blue channel swapped in processing, which is standard procedure for most color IR.

From my understanding, the images are “out of camera(or in camera)”. In the PetaPixel article under the image of the Nikon camera, it states that the goal was to get the effect without channel swapping or extensive PP work. It was then turned over to Kolari. Look at the display on the Canon screen. Also, read the description here:

https://kolarivision.com/product/kolari-vision-ir-chrome-lens-filter/

Joe
Learn the rules like a pro, so you can break them like an artist.  -Pablo Picasso
 

by E.J. Peiker on Tue Feb 05, 2019 11:27 pm
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Interesting, I guess that's why the filter has a blue layer unlike most IR filters which are red. That renews my wanting to see transmission curves :)
 

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