Quote:
Originally Posted by strongmanmike
Yeh I like your Sol processing the best Paul (not that the others are bad or anything). Incredible amount of stuff going on there...it looks a tad patchy and slightly blurred in places though but overall, phew, pretty speccy image mate 
Mike |
Yeah the blurring and the patchy look is a problem with how the etalon works on this unit. I have found that like the PST there are sweet spots. I have only found the sweet spot once or twice in the last 8 or so months. When I find that again I am going to mark it so I don't lose the spot. I don't think Peter has the same problem with the 90mm, but then again he is not using a dedicated scope and this might well be the problem with dedicated telescopes. Trying to find a setting with even illumination on the front etalon is like looking for a needle in a hay stack.
Some of the blurring is caused from this sweet spot issue but some is from seeing during the 15 minutes it takes to do the mosaic run. Due to the sun slowly changing, I want to capture the data quickly so that nothing changes in the overlap, that means I cannot image when the seeing is good.
I suspect that Peter runs many more mosaic panels with the PME. That way he can get each panel looking right with plenty of detail and no problem with illumination. Perhaps it is time to look at another scope for this job?