Yes Peter, the curved vanes do minimise spikes. You can see this in my image but also look at Nenad's
review that I provided a link to. About halfway down there's a bit discussing this with an image of a bright star showing very little in the way of diffraction spikes:
Quote:
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TAL 200K seems to be unique with its curved spider vanes that were supposed to reduce diffraction spikes around bright stars. The concept is obviously working, leaving only minor spikes around the star that originate from sharp corners where vanes meet the secondary holder and the aperture opening.
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