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Originally Posted by EzyStyles
sweet spot only 5mm? nooo! i think i need a new scope. thanks Roger. The Vixen R200SS coma corrector arrived today. But it doesnt fit  I will also need some Vixen adapter for the thread as well. I thought coma correctors were universal, though wrong. I wait for Merlin's one in the mail next week. Hopefully this will solve the issue. |
I already mentioned that at the earlier part of this thread. This is the first time i saw what a 'sweet spot' looks like after seeing your DSLR widefield image. :-) Anyway, the sweet spot can be fixed in place at the center of your FOV by using the barlowed laser collimator method. I have one and i can make the collimation adjustments in less than 30 seconds. That is the duration of placing the mirror's center spot sticker shadow on the collimator's center marker using the collimation screws.