Inrfared Photography help, please
Nov 1, 2014 10:39:33 #
Winter is coming and this year I'm going to screw the IR Filter on the D7k and take a few heat loss photographs of the house.
PROBLEMs are: (1) white light on poll that across the street from my house, and (2) I have never done IR before.
EQUIPMENT is my D7k, an AF NIKKOR 18-105mm f:3.5-5.6 with a Hoya INFRARED (R72) filter. Yup, got a good tripod with a good head (Manfroto).
I'm wondering if anyone here has gone down that road before and would you like to put forth some guidance.
PROBLEMs are: (1) white light on poll that across the street from my house, and (2) I have never done IR before.
EQUIPMENT is my D7k, an AF NIKKOR 18-105mm f:3.5-5.6 with a Hoya INFRARED (R72) filter. Yup, got a good tripod with a good head (Manfroto).
I'm wondering if anyone here has gone down that road before and would you like to put forth some guidance.
Nov 2, 2014 06:16:51 #
Go to the site of FLIR and there real IR is explained. Most of what we do with our cameras is NIR.. Near Infrared.. 550nm is edge of viable... 720nm is nice compromise for IR look... Trees vs sky vs clouds. 950um is midnight!! and is visible in bright day. You are looking for differences in IR and false color. See:
http://www.flir.com/home/
There is one attachemet for (what else!!!) iPhone. That cost $200. Ouch.
OR... you can buy one of the $20 temperature guns that is good to half degree ... simply point and read. That may do the trick
http://www.flir.com/home/
There is one attachemet for (what else!!!) iPhone. That cost $200. Ouch.
OR... you can buy one of the $20 temperature guns that is good to half degree ... simply point and read. That may do the trick
Nov 2, 2014 07:26:49 #
dpullum wrote:
Go to the site of FLIR and there real IR is explai... (show quote)
I thought about doing this, but the cost of the equipment would be hard to make up in heat savings.
A less high tech way to find drafts is to get a stick of incense, light it, and bring it around the house and check for the smoke blown around by drafts.
http://energy.gov/energysaver/articles/detecting-air-leaks
Nov 2, 2014 11:36:24 #
Temperatures are measured in the 10 micron range (mid IR), whereas IR photography is roughly 1 micron or less (near IR). Your camera won't even "see" temperature. Best bet would be to buy a thermal imaging device specifically for that purpose.
Nov 2, 2014 12:26:01 #
silver
Loc: Santa Monica Ca.
Grandpa Bear wrote:
Winter is coming and this year I'm going to screw ... (show quote)
Infra red does not respond to heat. You will get the same IR effect on a really cold day as on a really hot day. IR does not respond to heat.
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