Quote:
Originally Posted by gregbradley
That's impressive Glen. I would not have though you would get round stars to the corners with a 19% obstructed scope.
As Roland pointed out in the original post I posted you need the large 40-50% central obstruction to cover a large sensor.
Its amazing how light will bend around the obstruction.
Greg.
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Well Greg it does have a thick front corrector plate, and while I am not sure exactly how that bends the light ( ala a refractor objective shape) it obviously is doing a good job.