You are assuming that you are correct about DSLR being the same as a human eye, and then using that assumption to prove your own point. That logic is a fundamental mistake when evaluating any scientific hypothesis.
The human eyes insensitivity to red and blue can be proven when visually looking at these nebula as they apear greyscale ( I know due to rods). What this dosent prove is that an exposure with a DSLR with more blue than red saturation is a linear representation of the concentration of blue light hitting the camera from that object. Because some of the red is blocked by the IR filter.
I will leave it at this, because I feel like I am hijacking Petes thread. This is a beautiful representation of the object regardless of what colour people think it should be.
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