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05/04/2006 05:04:48 AM · #1 |
the page in question
Was reading on another photography forum, where this punk was asking about the Sony nightshot where it was once rumoured (old news) that it could be altered to shoot through layers of cloth, paper, and other things. Personally I think the dude is up to no good intentions. From there, I did some readings and found out that most links are by companies trying to make a quick buck selling their so called "see through" filters, etc. But the link above had me worried, for seems that it does work (to some extent, probably). What is your opinion on this? |
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05/04/2006 07:09:36 AM · #2 |
| I am pretty sure it had to be on only certain model old sonys. from what i understand it doesn't work on newer cameras. but i will agree that anyone looking for it will most likely be doing bad things with it. |
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05/04/2006 07:13:07 AM · #3 |
Originally posted by crayon:
Was reading on another photography forum, |
Traitor!
:) |
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05/04/2006 07:15:08 AM · #4 |
If you look closely on the cigaret image you see that all the filter is not visible on the second image. That is probably because someone is sucking it.
The things with the inc, no way for you to know wich one is taken before the other. |
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05/04/2006 07:15:46 AM · #5 |
lol
Originally posted by Guyver:
Originally posted by crayon:
Was reading on another photography forum, |
Traitor!
:) |
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05/04/2006 08:06:11 AM · #6 |
if I remember correctly it was with the older sony video cameras. They were set up to be able to shoot in very low light and when you used this night setting in regular daylight you could see through certain materials like swimsuits. Most camera's now have a built in filter to avoid this but it appears that you can get around it.
see here for more details
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05/04/2006 02:48:41 PM · #7 |
Some Sony video cams have a "nightshot" switch that physically moves the IR filter out from the light path. (AFIK, camera sensors are IR sensitive) The theory was that IR would penetrate clothing, etc.
The Sony camcorders in question had some sort of adjustment so that you could turn on nightshot, and get an image that had a high IR component durring the day. Supposedly, some fabrics and colors were more transparent to IR than others. There was a big stink about it, and Sony ended up changing the video cameras so that if you selected nightshot durring the day, the images were degraded (IIRC, they were oversxposed).
If this worked at all well, then years ago, sales of infrared sensitive film would have been much higher than they were. |
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05/04/2006 03:05:04 PM · #8 |
Not all materials appear the same to light of different frequencies. In front of the IR diode on some remote controls you can find a piece of plastic that looks completely opaque. IR light passes through this, but light in the visible spectrum can't.
With regards to clothing I believe that the IR passes through synthetic fibers like polyester and such, this would then allow you (in thoery) to look through swimsuits at the beach. |
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