Interesting work Bill. If only the 350D had an even spectral response across the other key wavelengths. I guess this can be circumvented with longer exposure times at other wavelengths to compensate. Would be interesting to blend some OIII data into conventional RGB images. This is typically done for specific targets such as the Dumbell neb which are rich in OIII information, but typical green and blue colour filters miss the emission line. Thanks for sharing your adventure. Hope to see more of your work.
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