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Bruce,
If you want an aberration free image for ANY camera, you need to use a focal reducer/flattener designed SPECIFICALLY for the scope you are using. No ifs, no buts.
That is why that 0.5X 1.25" reducer isn't doing the job. Nothing wrong with it. It is designed as a general purpose reducer for refractors and cassergrains, and the slower the f/ratio the better. And these same modest reducers are no good in Newts from the very start - they are a complete optical mismatch.
The only option you have for your fork mounted scope is to use a diagonal in the optical train. It is the only way you will get the camera to clear the yoke. Unless if you defork the scope and put it on a GEM...
Alex.
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