For those who have not heard this, you can actually convert your normal digital video camera into an infra red x-ray video camera. This 'technology' was accidentally discovered by a video-grapher who noticed that when you put your digital video camera in 'infra red mode/night vision mode' and used a special video camera lens filter, you're able to see through fabric.
Normal Digital Video Camera Setting
Using Infra Red/Night Vision Mode + Lens filter
Unfortunately, this 'technology' was extensively used for voyeur activities.
The digital video camera mainly used for this illicit activities was the SONY TRV series (e.g. TRV900). This led to the recall of the SONY TRV series when the 'problem' was discovered. Here is a brief explanation on how X-Ray Digital Video Camera work:"Firstly one important point : The term "x-ray" was coined to describe the effect that filming with infrared light only has on certain types of fabric. It does not mean that this technique uses real x-rays like a hospital or dentist uses.
This filming technique takes advantage of the fact that certain camcorders, in night-vision mode are very sensitive to infrared light. Much more so than an ordinary camcorder.
Infrared light has a longer wave length than visible light which causes less of it to be reflected by certain types of material and fabric than visible light is.
The effect is that the light passes through the fabric, reflects off anything underneath and passes back out through the fabric again. This effectively renders the fabric semi-transparent - it typically takes on a "net curtain" type appearance, similar to very sheer clothing. In some cases the fabric is barely visible when viewed this way.
In order to see this effect, it is necessary to filter out all visible light entering the lens. The reason is simple:
When the visible light is reflected by the fabric it obscures any image which would be visible with only infrared.
It's surprising the number of people who fail to realise the importance of the filter.
You cannot film infrared x-rays in daylight without an infrared filter!
Imagine trying to look at someone in a dimly lit place while they are shining a torch at your eyes. You cannot see them at all, but block out the torch light and you can see the person clearly." Read further...
FM discovered that this technology is not confined to Digital Video Camera but your normal DIGITAL CAMERA as well. The following is an instructional video on how to convert your normal digital camera into an "X-Ray" camera. Please do not abuse this secret by taking naughty photos :)
1 comment:
How do I burn 2 .MTS files to a DVD without a small pause when it's going to the next video.
The .MTS video were recorded with a JVC Everio Camcorder. it cut the video into 2 at 51.32
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