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Joined: Thu May 22 2008, 05:24AM
Location: Toronto, Ontario, Canada
Posts: 801
So with CMOS and CCD devices, as the second post mentioned, its IR typically, some cameras have a IR blocking coating somewhere in the optics path, some don't. Try various filters, even just a clean plate of flint-glass might do it depending on the IR band.
As for the blooming, its because with a CCD at least, you have each pixel storing a certain charge which is proportional to the incident light. If you have too much light, the charge can exceed the capacity of that pixel and 'spill over' into adjacent pixels, causing light to be recorded where there was none. I'm not completely certain whether this occurs with the more common CMOS optical sensors though.
The best start would be to find a IR filter and screen out the high intensity IR. You could also find some neutral density (ND) filters that essentially have an absorption spectra that is as flat as possible.
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Recording High energy discharges
