Quote:
Originally Posted by Merlin66
Glen,
To achieve a FULL full spectrum mod both the AA filter (which blocks the UV/IR) and the colour correction filter need to be removed
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Merlin, that is not true according to Gary Honis' information. The AA filter (also known as Low Pass 1) is clear and can be left as protection for the sensor and in terms of the spectrum has negligible effect. The AA filter is not a UV/IR block, that function is performed by the IR Cut filter (the blue cast one). In fact Gary recommends that you install a Baader IR Cut which has the cut point down below the Ha frequency (this can be done with a clip-in or with a 2" screw in on the T-adaptor - which is the one I use. Details on this page undre Filter imaging chip disassembly.
http://dslrmodifications.com/rebelmod450d4.html