Infrared IR Filter 720nm Universal for SLR DSLR Camera Lens
Description:
Suitable for DSLR/SLR Camera Filter Thread
Application: Nature, scenic, often used in crime detection photography, detection of distribution of vegetation, etc.
Works well with digital cameras, especially mirrorless cameras or DSLRS with no IR blocking filter in front of the sensor.
Effect passes only infrared rays above 720nm
Infrared film is also sensitive to ultraviolet rays and the shorter wavelengths of the visible so it is necessary to filter out all but the infrared rays
This filter can also be used to achieve an "X-Ray" effect
Filters can be used in baby monitoring applications. Using an infrared light source, the parent can view the child in complete darkness without having to turn on a light and disturb child.
Specification:
Material: high quality optical glass
Wavelength:IR720
720nm is suitable for indoor and weak light use.
Common problems of IR filters
Hotspots
Hotspots are a relatively common problem with infrared. It is due to internal reflection of light inside a lens. Normal lenses have coated barrels to absorb light, but these coatings don’t always work in infrared, causing these problems.
Solution:
1.Hotspots can often be eliminated by changing the aperture.
2.Hotspots occur most often in the same type of shooting angles that cause lens flare. In this case, hotspots can usually be avoided by shooting away from bright sources of light.
Exposure:
On converted cameras, the exposure meters still work based on visible light. This can occasionally cause some under or over exposure because the visible and infrared light of a scene may not be the same.
Package Includes:
1PiecexIR Filter
1PiecexEnglish User Manual
Note:
Please set a custom white balance of your camera.The way to set different cameras may vary,please check your manual.
The exposure time is relatively long when using IR filters, a tripod is necessarily needed at this situation.We also suggest you to use a cable release in case shake happens.
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