Quote:
Originally Posted by richardo
yeah, I found my Orion ED80 did have a bit of focus difference from Red, to Green and blue.I always had halos around the blue stars as well as blue bloat.While a great little scope for the money, it had its down falls as to be expected.
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The ED80 is one great scope - no doubt. But as you progress in the hobby you soon
hit a wall. The problem I had with it was with the blue channel being slightly blurrier than the red and green. As a result after even the slightest deconvolution and color balance/saturation I ended up with some of the star cores having real funky colors in the RGB. Looking at the blue channel they were punched out in the middle (black dot). I could work around it once aware of it by selecting all the cores and applying a slight blur but it can be a lot of work when you image around the milkyway. Other than that I never had any issue with it. It's a good all rounder. This new APO though is in another class. It was very obvious to me straight away when I started playing with it.