Quote:
Originally Posted by AlexN
Its funny because the diffraction rings were concentric and evenly spaced.. the scope gave razor sharp views through the ep.. stars resolving into tiny little spots of light right through the FOV... the only thing I did notice was a shadow around the edge of the field of view on one side of the EP.. But how could the diffraction pattern look collimated if the mirror was so poorly tilted as to cause a shadow like that? I dunno.. will have to look at it further..
Alex.
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Does the focuser have a baffle tube like the VC200L ?
It may be that that focuser collimation is out, causing a shadow when light casts in and against the baffle tube to the EP? Is there a site around that shows a detailed diagram of this RC ? I cant find any.