I've been testing the Omega stack with various elements/ tilt settings and comparing the CWL (central wavelength) and FWHM results with the spectroscope...
The best results so far are with the combo of the Baader CCD-D filter as an ERF, the 394nm 80nm as a semi-blocking filter and the 393.4nm 2A as the final trimming filter.
Conditions haven't been the best - wind, rain and average seeing, combined with a pretty quiet surface.
Using the ED80 and the ASI 1600 as well as the ASI 174 - both with/ without the x2.25 Barlow.....
The attached image was obtained with the ASI 174, x2.25 barlow, processed in AS3!, with curves in Registax6.
Looks promising.
Kevin,
Without getting into Ha narrowband etc. the next thing you could try would be to add some filters to your white light set-up.
A continuum or OIII filter will improve contrast. Alternatively a DSO Ha filter will sometimes give steadier seeing allowing more detail to be recorded.
