Just a couple more comments,
Peter, have you tried comparing reflectors v refractors as well as modded v unmodded DLSR, plus with or without LP filter? There are quite a few variable there...
Rick, with a modded camera, there is tendency for the red to show up more, because you have increased the senor response in the red end of the spectrum. That's why a custom white balance is needed (to tone down the red). Adding an LP filter in the imaging train, such as my CLS-CCD filter increases the contrast and limits some of the sensor response, but the result is a punchier image.
So if you have a full spectrum mod camera, do a custom white balance, add a LP filter if you are shooting from a suburban location and you can get equal blue and reds show up.
This is an image of the Triffd (M20) I took with the same set up and the blue showed up as prominently as the red
http://www.iceinspace.com.au/forum/s...d.php?t=157269
If you want to read up on the modding process and how it affects the sensor response, Gary Honis has a great write up here
http://dslrmodifications.com/DSLRcomparison.html
cheers
Bo