Quote:
Originally Posted by Satchmo
I think all the comments about lack of need of baffling opposite the secondary are somewhat optimistic. 
I have trouble with my own house lighting and neighbors lighting at different viewing positions in the sky bouncing off the flat black area in my tube behind and around the secondary mirror - a problem which fitting a longer hood at the end of the tube fixes. Having said offensive lighting flooding full strength into the focuser from behind and around the secondary, if I had no tube, would completely ruin things .
The trouble with shrouds is that they can get pretty heavy when laden with dew and upset balance.
One way to reduce need for baffling behind the secondary is to mount a baffle stop away from the bottom of the focuser towards the secondary.
Anyway you will fine tune all these things in time when user feedback comes in from all the situations that they are used in.
Look forward to see what forms of baffling are on offer . |
The draw tube baffle idea is good one. However, you can't attach it to the end of the draw tube because it is threaded for screw on filters in this case.
I believe this ultralight/ultra portable scope will be marketed primarily for very easy transport and setup to and at a darksky site. (Did that sentence make sense? Makes sense in my mind anyway?) If your observing location has extraneous light going straight into your focuser or washing out your secondary mirror. Perhaps this scope is not for you?
That being said. From these pictures alone your not getting the full picture of Alex's design capabilities. No doubt Alex wants to leave some of the extra features and innovations a surprise for the unveil at IIAC that overcomes problems you have mentioned.