DEEP ULTRAVIOLET IMAGING USING THE RASPBERRY PI HQ CAMERA
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How to View Below 350nm?
The Raspberry Pi HQ camera has gotten into the hands of ultraviolet photographers and with a few modifications the camera has had surprisingly impressive results for UV.
Ultraviolet photography under 350nm (below what even birds/bees can see) is done using a specialized UV camera. On top of the camera itself, different arrangements of specialty lenses, filters, and UV lights are necessary depending on the application, driving the cost of these projects upwards.
Raspberry Pi has opened a low-cost window for camera hackers and enthusiasts by replacing the specialized UV camera with the Raspberry Pi HQ camera, shown in Figure 1. By removing the Color Filter Array (CFA) you are creating a sensitive enough sensor for photography and real-time video.