Quote:
Originally Posted by Peter Ward
Nice one Paul 
My typical Solar run is 12 panels with good seeing and 6-9 with average seeing.
Front etalons do not have " sweet spots" as there is no convergence from the source. They do however have multiple reflections which can get close to the primary image without a gross-error check. |
Hmmm, so why does the image when in the center of the run have one side detailed and the other side containing a flat less detailed aspect (noticable)? That would indicate a sweet spot. Perhaps this is the interference with the second internal etalon which I cannot move. It is most likely this etalon which contains the sweet spot.
I have seen the reflections before when just viewing, however those are present at either end of the etalon adjustment.