Quote:
Originally Posted by silv
On that note: does the stability support of the tube walls get reduced or enhanced regarding tube flexture by having the vanes in the middle of the tube?
and also regarding flexture due to the focuser and finder weight in that location in the middle of the tube rather than on the end?
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I don't think you'll have to worry about flexure. If anything the tube wall is stiffer in the center than the edge.
Quote:
Originally Posted by silv
Another aspect I can't quite understand is the 2ndary being closer to the primary should enhance the normal obstruction effect? It's also quite big: 60mm.
I'm not concerned, at all. I'm just curious  |
I wouldn't think so because the light entering the scope is parallel so the obstruction stays the same.