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IR camera filter

PostPosted: Tue May 25, 2010 11:01 am
by LocksmithArmy
well i hope this doesnt count as porn...
http://www.catsdomain.com/xray/

can anyone tell me if this works?
i almost wanna try it lol

Re: IR camera filter

PostPosted: Tue May 25, 2010 11:07 am
by chris
haha i don't know man...but it looks interesting.

Re: IR camera filter

PostPosted: Tue May 25, 2010 11:15 am
by ChemicalRobot
Haha interesting. I guess it makes some sense though. I'm always surprised at the things that are transparent in infrared light. For example, black garbage bags.

Edit: but you could probably find a filter MUCH cheaper than what they are selling.

Re: IR camera filter

PostPosted: Tue May 25, 2010 12:53 pm
by HallisChalmers
Well, I don't know what to think...after all this is the same guy aka "The Lockpicker" that sells the lockpick kit and the tubular lock tension wrench.

Kinda cheesy items - but technically they do work.

Still, $25? Shit, I've spent more for less.

I admit it. We all have at one time or another.


[Edit: BTW - Here are some links to DIY projects to accomplish this using a piece of developed film. http://geektechnique.org/index.php?id=254 and http://photocritic.org/create-your-own-ir-filter/ Oh and this: http://www.brighthub.com/multimedia/photography/articles/43805.aspx

Might be cheaper.

Re: IR camera filter

PostPosted: Tue May 25, 2010 7:21 pm
by KokomoLock
I have one for my camcorder but have never used it. If you would like it let me know and I will send it to you, not sure on the thread though!

Re: IR camera filter

PostPosted: Tue May 25, 2010 9:28 pm
by elbowmacaroni
As HC mentioned, you can use developed exposed film as an IR filter. It DOES work, and well at that... but it gives everything a reddish-purple hue. But you can remove that in editing software to made a "standard" grayscale IR shot. Just pull the film out of the can in sunlight, rewind it and get it processed somehwere... tell them it sucks and you don't want any of the prints, they normally won't charge you and will give you the exposed and processed film strips back. You need to use B&W film for this though. I've made filters for my wife's digital point and shoot with some secured to the end of a short piece of CPVC pipe that fits snugly over the lens. It also helps if you use a big enough ID pipe to put some black velvet into it. Which serves two purposes, firstly it prevents light from getting in from the lens side, and secondly it prevents reflections inside the pipe from washing out the pics.

[edit] I moved this post to the photography tips and tricks forum from random ranter as it's a better fit[/edit]

Re: IR camera filter

PostPosted: Tue May 25, 2010 11:08 pm
by Tygart
Your joking right? Please tell me your joking...

No you can't use your camera phone to see a through clothing.. That would be X-ray not IR... IR is infrared its a light that your eye can't see.

If you have photo shop CS3 you can convert your photos to IR (Infrared)

GOOGLE IT it makes for some cool photos.

BTW look at the girls expression on the phone then on the picture.

A fool and his money is soon parted.

Re: IR camera filter

PostPosted: Tue May 25, 2010 11:28 pm
by geardog32
Its not x-rays. if it were x-rays you would get nice pictures of bones and a small dose of cancer to go with it. the concept is based on the idea that infrared light can pass through many types of clothing but doesn't pass through human skin. this means that the reflected infrared light perceived by the camera is what was reflected off the skin. the ccd in the camera then translates it to an image we can see on the lcd. this has been done in the past with the older sony night shot cameras and the infrared filters.

now do i believe this will work? i cant say for now, but i do see possibility of it working. To give it an even better chance of working one could make an easy infrared light source to go along with it.

will i purchase it? NO! but i would be curious to hear from someone who did.

Re: IR camera filter

PostPosted: Wed May 26, 2010 1:35 am
by bouncer965
geardog32 wrote:
will i purchase it? NO! but i would be curious to hear from someone who did.


I'd be more interested to see some of the resulting photo's :drool: :drool: :drool: :drool:

Re: IR camera filter

PostPosted: Wed May 26, 2010 6:56 am
by LocksmithArmy
for those still not understanding the concept... here is a nice demo :)

Re: IR camera filter

PostPosted: Wed May 26, 2010 5:58 pm
by Tygart
You can get Modded Canon SLR's that shoot IR they do not see though clothing.

But I do have some magic beans for sale!!

Re: IR camera filter

PostPosted: Wed May 26, 2010 7:41 pm
by LocksmithArmy
shooting IR and having the proper IR filter are different...
(i have done much research since asking the initial question)

I had a cctv network growing up to monitor the cats... the ir in it helped see at night... the cats could see the ir bulbs(which was an odd discovery) but it couldnt see through clothes... because most cameras can see ir and visible light... the ir filter removes the visible light... that is the difference... seeing only in ir will only see what the ir bounces off of... g.e. skin but not many clothes...

this isnt a photography project its a light spectum scale project.

Re: IR camera filter

PostPosted: Wed May 26, 2010 10:16 pm
by elbowmacaroni
Tygart wrote:Your joking right? Please tell me your joking...

No you can't use your camera phone to see a through clothing.. That would be X-ray not IR... IR is infrared its a light that your eye can't see.

If you have photo shop CS3 you can convert your photos to IR (Infrared)

GOOGLE IT it makes for some cool photos.

BTW look at the girls expression on the phone then on the picture.

A fool and his money is soon parted.


Converting to "IR" in PS isn't really quite right looking compared to real IR shooting though.

Re: IR camera filter

PostPosted: Wed May 26, 2010 10:28 pm
by elbowmacaroni
Tygart wrote:You can get Modded Canon SLR's that shoot IR they do not see though clothing.

But I do have some magic beans for sale!!


Yeah, they take the IR filter off the top of the sensor, and then you have to put a visible light (IR only) filter on the front of your glass. It's pretty cool, I've considered having my XTi modded since I also have a 40D. But, the only thing keeping me from it, is that I like to have a fallback in the event the 40D fails for some reason, and it's handy to carry two bodies when out shooting so that you're not always swapping your glass and getting dust inside. I mean, I got a good sensor cleaning kit with a lighted magnifier and all, but if ya don't need to clean the sensor it's even better.

And yeah, IR is pretty much stopped by clothing unless the clothing is sheer already...

Re: IR camera filter

PostPosted: Thu May 27, 2010 4:11 am
by abroxis
What the ads for the ir filters don't mention is that there are too many variables in making the fabric seem transparent or semi see through for people to get the results they are expecting on a consistant basis.

Take a couple horny university students who happen to be physics majors,( they understood how to pervert science for their own phun) the right equipment and some of the results can be amazing. I believe wet dark fabric swimsuits at the pool or beach can yield very dramatic proof.

One of the links explains more for those experimental types.


http://www.hoax-slayer.com/see-thru-lens.html