So what's new? I swapped the 50mm guider with the ST80 which now rides piggyback on the main scope, added a much heftier ADM/Losmandy D size bottom plate and gave the ASI120MM the task of guiding. The problem is (as if there wasn't gonna be one!) that the whole setup is now a lot heavier and a lot more sensitive to vibration. I had to use the counterweight shaft extension to balance the load with the 2x 5kg weights I have but it seems that the extension makes the whole thing a lot more wobbly. Also did some tuning to the DEC and RA motors to eliminate play but I fear I may have gone too far cause I was simply unable to guide properly no matter what I did. The ASI works beautifully as a guider and what really caught my attention is the fact that I can see the target through the guide window something that was simply impossible with the DBK. So here is a small test-drive at M3 using the new setup (C9,25/ST80/ASI120MM/EOS550D). Only 2x180sec at ISO800 no darks as I had a LOT of guiding issues that I need to solve!
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