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Very interesting Gary, and interesting results.
I've read a bit about the RAW mode over on CN, and lately the thing to do seems to be the OPTIMISED-COLOUR mode. I haven't read into the technicalities of exactly what settings it changes inside the camera, but others have claimed success with that method.
To be honest though, noone has done (that I have seen) a true side by side comparison of raw vs non-raw, optimised-colour vs normal, etc. Yours is a good attempt at a comparison, but even still they are several nights apart, conditions were different, transparency could've been different, settings could've been different, registax might have done things differently, your focusing might've been slightly different. It's really hard to get a true comparison.
In your images, while the colour appears better in the non-raw image, I actually prefer the detail in the raw one. The non-raw one has severe onion ringing, possibly due to lack of exposure/gain (going by Eric Ng's video). Although the raw shot looks over-exposed (slightly) in the middle EQ zone.
I'm not sure if the eyepiece projection method you're using affects it at all either, you're the only one i've seen imaging like that lately. Have you tried at prime focus to see if it makes any difference?
I'm going to try the optimised-colour mode on my ToUcam next time out and then i'll change the settings back in the same night and try and do a comparison also. We need to solve this once and for all and we need as many experiments by as many different people as possible.
Great thread Gary!
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