mga bossing gusto ko lang ipamahagi ang kaalaman na kung saan ang infrared photography gamit ang Sony nighshot feature ay kaya na makakita sa maninipis na kasuotan gamit lamang ang kaunting modipikasyon.Reflected "See-Through"
Perhaps you are wondering what makes this ability possible. The answer lies in infrared rays. All reflected light that we can see with the naked eye represents a fractional portion of the electromagnetic spectrum, which is infinite. We refer to this section as "visible light". All around us, light is reflected which the human retina cannot detect, such as ultraviolet and infra-red radiation.
The visible part of the spectrum falls between the wavelengths of 430nm~690nm. (1nm=10-9m) Infrared rays have much larger wavelengths than this. We divide them into "Near Infrared Rays" (690nm-4,000nm) and "Extreme Infrared Rays" (over 4,000nm).
Unlike ultraviolet and visible rays, infrared rays tend to penetrate any medium rather easily because of their large wavelengths. This also means that infrared rays are not refracted much at all when passing from one medium to another. When we shine sunlight through a prism, it is refracted at an angle according to its wavelength. The blue end of the visible spectrum has the shortest wavelength, so is refracted the most. At the other end of the spectrum, beyond the red, visible light, infrared rays are barely refracted at all because of their long wavelength.http://www.kaya-optics.com/products/how_it_works.shtmlhttp://www.kaya-optics.com/products/experiments.shtml
Digital camera without IR filter
Digital camera with IR filterhttp://www.metacafe.com/watch/718064/x_ray_camera/