Our infrared (IR) camera flashes currently are available only with a 715nm IR filter. Because of the intensity of the flash, you will see a noticeable red flash when unit fires if you are looking directly into the flash. This is because the human eye does have some sensitivity above 700nm though the eyes response is low.
These IR flashes should be used with a modified IR-Only or IR+Visible digital camera or IR film camera. Using an IR flash with a stock camera will work poorly.
The range of the flash will depend on the camera ISO setting and the cameras inherent sensitivity. Different cameras have different IR sensitivities. The primary factors on camera sensitivity are:
Many of the current Canon and Nikon digital cameras require an intelligent flash such as the Canon 580EX Speedlight or Nikon SB-800 speed light. Some of the higher end pro cameras like the Canon 30D, Canon 5D, Nikon D200 & Nikon D300 can accept a flash connected to their PC connection like our Sunpack 622 IR flash.
These infrared camera flashes can be used to take pictures at night with little visible light emitted. Depending on the camera, its sensitivity, ISO setting, lens diameter, aperture and shutter speed, these flashes can extend the camera range to 100 meters or more. Please don't ask us if what the performance is with your particular camera. We can't test every combination because it simply would take too long. As a general rule of thumb, the electronic flash with a 715nm IR filter on an IR+Visible camera will have a similar range to a stock camera with a stock flash.
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