There is an infrared camera at OMSI. It's a fairly high end one from Flir. It's 
located in the exhibits in the steam turbine hall.

Mark

----- Original Message -----
From: "Jerry Biehler" <[email protected]>
To: "A discussion list for dorkbot-pdx (portland, or)" 
<[email protected]>
Sent: Saturday, April 11, 2015 8:07:53 AM
Subject: Re: [dorkbotpdx-blabber] IR absorbent & cheap material

For fabric look at dyed natural fabrics like cotton. Synthetics like polyester 
and nylon and virtually transparent. 

-Jerry

> On Apr 11, 2015, at 12:09 AM, William Wilson <[email protected]> 
> wrote:
> 
> I've had problems when asking about the optical and electrical properties of 
> materials... whether fabric or plastic film, the guys at the stores generally 
> only know what the label says.
> I would recommend using a camcorder with *really* good night vision (like a 
> Sony Handycam with "super nightshot" from 15 years ago, or one of those 
> little gold colored $20 cmos security cameras),  and bring it to the fabric 
> store. You don't have to record, if you have a little screen you can watch 
> for fabrics that look *very* black.
> 
> Just remember if they think you're recording they may decide to kick you 
> out.. and I've found that humans can be really dangerous if you try to burden 
> them with reality *after* they've formed an opinion.
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