Package Content 67mm IR 950x1
In which suitable light source should I use the infrared filters?
680nm for indoor use and weak shade.
720nm for indoor and low light use.
760nm for cloudy outdoor areas at nightfall and indoor brightness.
850nm for indoor and dim cloudy outdoor light.
950nm for outdoor use and strong light, like summer time.
Note:
Please set an individual 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 absolutely necessary in this situation. We also recommend that you use a cable release in case you shake something.
Common Issues of IR Filters
Hotspots
Hotspots are a relatively common problem with infrared. This is due to the internal reflection of the light within a lens. Normal lenses have coated shafts to absorb light, but these coatings do not always work on infrared and cause these problems.
Solution:
1. Hotspots can often be eliminated by changing the aperture.
2. Hotspots most commonly occur at the same type of shooting angles that cause lens flare. In this case, hotspots can usually be avoided by keeping them away from bright light sources.
Exposure:
For converted cameras, the light meters still work based on visible light. This can occasionally cause overexposure or underexposure as the visible and infrared light of a scene may not be the same.