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Hi Trent, the worst you could do with the secondary being in the wrong position is cause vignetting or slightly hurt your contrast, since the scope has still come to focus - same with the new T-adapter. If your secondary is not well positioned your collimation will also be problematic, but won't cause the effect you're showing. Is there anything reflective in the OAG? This really looks like a stray light issue to me, so some shiny metal exposed in the imaging train - and - a new source of light off axis.
cheers,
Andrew.
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