[Merlin66 (Ken)]

Since publishing some tranmission graphs last year which clearly show that the front filter ( the one usually left behind when the colour balance filter is removed for the "mod") acts as a very good UV-IR cut filter, I've been beat up by the guys in the States who say an additional UV-IR "replacement" filter is the ONLY way to go......
Obviously I disagree.
I managed to set up the MG80 spectroscope this morning and test a separate front filter element ( removed from a 1000D).
Surprise, surprise it shows exactly the same...
The attached file gives details.
Feedback and comments welcome.