infraredtechnician (September 28, 2008 at 2:19 pm)

with the high pass filter removed,as in Sony's nightshot cameras the bare silicon CCD used with a Glass optical system (multi element lens) it will see wavelengths down to 1.2microns (1200nM) below this the silicon detector will not produce enough electrons for the video processor to make an image.

NAMLegolas (September 16, 2008 at 5:59 am)

Ah yes, I see. Thank you! :) Near infrared is what I'm interested on for my telescope anyways :P Thank you again for the fast response! This sure answers all of my questions regarding Near infrared and Mid infrared :)

SpitzerJim (September 15, 2008 at 5:28 pm)

If I'm remembering right (the camera used to produce this video was retired shortly after I started working here), it was sensitive from 8-12 microns. Infrared films and infrared filters for conventional cameras only cover the very near infrared (under 1 micron, usually), because for longer wavelengths you need specialized lenses and specialized detectors. [1 micron = 1000nm]

NAMLegolas (September 14, 2008 at 7:11 am)

What is the Infrared frequency for this camera to be able to detect heat?I'm thinking of buying a 960nm filter for my Infrared enabled camera. would that do the trick? or do i need a higher wavelength filter?

mariuszny (July 28, 2008 at 2:44 am)

So glass is good for infrared. Metal cage for electromagnetic. How else the goverment can spy us?Btw. She lost some weight. That's nice.

SpitzerJim (May 20, 2008 at 7:58 pm)

My background is actually in film and theatre (though I also took a lot of geology classes in college, but never finished the minor). My job is to sit the scientists down and get them to explain what they're doing, and then translate it into English.

timberhustler (May 20, 2008 at 6:48 pm)

I use a FLIR SC 640 for industrial inspections. It is 7.5 to 13 micron camera as well. It seems you know your stuff about infrared. What is your field of study? I also agree with what you say about manufactures misrepresentation of cameras. I am one of a few Infrared Thermographers who take the time to be certified to a high level. It bothers me to see the scince of infrared misinterpreted so often on the web by people with cheap cameras and no proper training or understanding of how it works.

SpitzerJim (May 20, 2008 at 6:15 pm)

All that said, you are correct that the low light settings on most consumer cameras are actually just the red sensors and a near-infrared headlight... But there I blame the manufacturers for calling it night vision when it really isn't. :)

SpitzerJim (May 20, 2008 at 6:14 pm)

The camera was bought before I joined the project (and has since been discontinued) but my understanding is that it had some of the nearer infrared included to allow it to be able to analyze much hotter items (it was designed primarily for building inspections, with emphasis on finding electrical and heating system faults). The one we're currently using is a 7.5-13 micron camera, which gives us access to cooler temperatures.

timberhustler (May 20, 2008 at 5:49 pm)

Sorry about that. You are correct....I am now the one who does not know what he is talking about. 5 to 12 that is an interesting range. 5 to 7 has very low transmission, and 12 to 14 still provide good transmision. I wonder what made them use that span as opposed to the now standard 8 to 14 microns. Thanks for setting me straight!