Quote:
Originally Posted by Kokatha man
Sorry, I meant to say the "red" is the normal Canon bandwidth pass - not "blue."
It seems, from the Hutech page, that a clear internal filter in front of the sensor will allow fuller bandwidth pass (naturally) and thus infra red photography.
Your LPS2 filter, if that is one and the same as Hutech's LPSP2 filter, is a selective multi-pass filter for the infra red specrum which may, as I posited before, create photo shots similar to "normal day shots." The graph in the Hutech article shows none of the UV end of the spectrum.
The steep cut-offs at either end of the IR spectrum window is evidently to minimize reflectivity between internal filter and sensor (chip.)
Evidently, these LPSP2 filters come as internal (just behind any lens you may fit to the camera) or as an external filter onto the outside of the lens.
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Hi Darryl. No offense at all, thanks for your input on this. I believe the Baader BCF filter only blocks out UV and certain IR range but not entirely all. From the Baader website apparently, the BCF filter will let in somehow more H-Alpha photons than the UV/IR filter making it more sensitive. This makes sense to the images ive posted. As to my LPS2 filter, yes it is the Hutech LPS2 filter. Adding this does make images look more normal but not 100%. Instead of adding a UV/IR filter, i might as well add the LPS2 front filter if the LPS2 filter also blocks out the IR wavelength.