Infrared Photography And "precious Resin"

[sotto2]

Partially answering my own question here, here is a link I just found regarding the science and technique behind this:

 

http://digital-photography-school.com/forum/general-chit-chat/162539-my-t2i-can-shoot-infrared.html

 

Oh, and another introductory vid I found:

 

https://www.youtube.com/watch?v=hZycK6o1VoI

Edited July 5, 2014 by sotto2

[BrassRatt]

The black Pelikan M400 and M405 appear to have quite a bit of fluid inside. Was this ink? If so, it seems that kind of ink is also IR transparent; I would be very interested to know what ink it is. If not (you just store those pens with water in them), never mind ... .

[KaB]

looks great!

... euh, but what does it mean? What's your interpretation of these images?

[georges zaslavsky]

outstanding

[RJJ]

Great idea and pics!

[MyDarnSnakeLegs]

Awesome!

[Drone]

This is interesting. It would be nice if someone would post an explanation of why and why not (e.g. with some of the example photos) this works or not. Is it something about the materials used in the pens (plastic types)? How was the lighting done? Was there an IR light source used when the IR photos were taken?

I'm not proficient in IR photography, but I know some of the fundamentals. Are the internals of the pens visible with IR photography due to the difference in materials, or due to the difference in temperature, or a mixture of both? Again, maybe the OP can clarify a bit more.

BTW: there is an inexpensive IR camera module available for the ubiquitous Raspberry Pi computer (~$35 USD) called the "NoIR" (looks like the name is a take-off of the French word noir for black) that has the IR filter removed so it can see in the IR spectrum. The Raspberry Pi NoIR camera module costs an additional ~$30 USD. There have been some impressive results with IR photography done with the Raspberry Pi NoIR camera. Google knows where you can find the stuff.

One more thought: I wonder if the pens photographed with an IR capable camera will show more detail or even more detail regarding ink-flow if the pens when empty are cooled like in your refrigerator then filled with warm water (or ink), then IR photographed. Before and after examples would be nice if someone wants to try this.

A link to the Raspberry Pi NoIR module:

 

http://www.raspberrypi.org/pi-noir-infrared-camera-now-available/

 

Best Regards, David