5 - InfraRed Filters
Just about all digital cameras use a filter in front of the sensor which allows visible light to pass but blocks almost all (but not quite all) of the infrared.
Infrared filters are numbered #89B, #88A, #87, and #87C. The filter you need varies depending on the camera you are using. To find out what works best with your camera, search the Internet or visit discussion forums.
Infrared filter guide
Your digital camera may already be IR-ready. All you need is the right filter.
Infrared filters give interesting effects with digital cameras by only passing the infrared portion of the spectrum. My Infrared Digital Photography page has more info and some examples.
Hot Mirror ...
The most common Infrared filters are listed by type as R72.
A good, low cost starter Infrared Filter is produced by Hoya.
The recommended contrast and correction filter colors, in the order of greatest to least effective for haze penetration, are as follows: Red Orange Yellow Green The use of an infrared sensitive black-and-white film with an infrared filter provides ...
Infrared Filter
Infrared is a wavelength that is longer than visible wavelengths which can be viewed by the human eye. Most digital cameras are sensitive to infrared and can make exposures at these longer wavelengths.
With a DSLR, you’ll need a tripod because exposures will be long, even in bright sun, and an opaque infrared filter such as a Hoya R72 or B+W 092. Compose before putting the filter in place, then position the filter and take the picture.
Some great features of this Canon EOS are a modified infrared filter, low-noise sensor and an 18-megapixel CMOS sensor. The filter allows those involved in astronomy to gain a hydrogen-alpha light sensitivity higher than the regular DSLR camera.
The majority of infrared photos are restricted to landscapes and static objects, because a long exposure is required when using infrared filters on normal cameras.
If you're shooting under circumstances under which focus compensation is necessary (eg: closeup photography or when using an infrared filter which is opaque to visible light) then, yes, ...
Another tip in enhancing your infrared photo is by adjusting the white balance. Since the infrared filter blocks the visible light from the camera's sensor, it is important to adjust the white balance of your camera.
- Kodak 4/3 Type CCD
- 8.0 million effective pixels
- Modified Hot Mirror (InfraRed filter)
Stabilization?
Wavelengths used for photography range from about 700 nm to about 900 nm. Usually an "infrared filter" is used; this lets infrared (IR) light pass through to the camera, ...
Special effects can be achieved by using infrared filters or color screens. E.g. a red filter generates the darkening of a blue sky and increases the contrast to clouds. This lends a certain drama to the picture.
 See also: Filter, Camera, Image, Infrared, Light
  
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