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Originally Posted by ving
i wonder ho much they need to curve?  |
Ving
The spider design that produces no diffraction spikes and minimum diffracted light haze around a bright star is a 3 vane spider with each vane bent so that it is essentially a 1/6 segement ( 60 degree angle ) of larger circle from the ponit touching the edge of the secondary hub to th edge of the mirror. This design has been verified in a number of independent studies and always comes up a winner.
Mark