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Steve,
You did well!
I'll have to stick to CaK imaging....
The SHG.. good question. I now have three variants:
1. The ST80 (f5) with a Classical spectrograph.
2. The TS102 (f11) with the Spectra-L200.
3. The Carton 100mm (f15) spectroheliograph.
#1 and #2 have been a bit disappointing - problems traced to focal ratios and undersized collimators/ gratings.
The SHG looks very promising but a bit heavy for the available HEQ5 mount.
Needs "perfect" conditions and no wind....
The ASI 183MM I bought for the SHG turned out to be "not suitable for solar narrowband" and ZWO replaced it with the ASI 1600MM - still to be seriously tested. In the meantime I have the ASI 174 but this shows some terrible banding in the spectral image.....no answers as yet.
So, no images at the moment...
Weather permitting, the SHG is ready to use. Let's hope it can be used on AR 2738.
Onwards and Upwards.
Last edited by Merlin66; 17-04-2019 at 09:27 AM.
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