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AGFA HN7m Recording Film

Indian ghost pipe plant.

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Indian ghost pipe plant.

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Jakobography

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Nov 18, 2014
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Location
Portland, Or
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Has anyone ever tried to shoot with Agfa HN7m recording film meant for graphic arts reproduction?
I am interested in trying it out, but I don't know what the ISO rating is for this film type.
I know that it is a far red film and that it isn't the greatest film in the world for traditional photographic pursuits.
However, I still plan to experiment with it. Please help!
 
I never heard of that specific film designation.
A "far red" film is hardly intended for graphics reproduction.
 
I understand that it's a recording film which is usually exposed by a Helium Neon laser, but I don't know what that quantifies to with regard to exposure.
I did find out "HN" stands for Helium Neon, "7" stands for the thickness, and "m" stands for the finish: matte.
 
Now, I understand. With "graphic arts reproduction" in mind I was thinking in a complete different dfirection.

Films for laser exposure typically are sensitized just for that laser.
 
HeNe lasers are (according to Wikipedia) 632.8nm. They've got a ridiculously narrow bandwidth too.
That doesn't explicitly mean that the film will also have a ridiculously narrow bandwidth, but it probably peaks in that area and doesn't have much either side in the traditional sense.
Could make for some very interesting shots, much like using strong red filter.
If you use it, post some here, if you don't, post it to me :smile:
No idea about exposure though, most of those graphics-arts / ortho / line films start around EI6, so that's probably a place to start. You'll have to just experiment and bracket a lot, your results are going to vary greatly depending on how much red is in the scene.
 
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