Following up on a prior comment I posted regarding a yellow halo around the moon, based on what I've read from the link that Garrett posted as well as other preliminary reading, is this a phenomenon that can be "cured" if I were to buy an "ED" bino instead of a "Semi-APO"? I believe they both have two lenses but the ED version is "higher" quality so that it has less CA? That yellow halo is so distracting that it really takes away from the viewing experience. It's a hard but bright yellow circle. I can also see some bluishness on brighter stars.
The ED is better but it is not the equal of a top quality APO either. The 82mm and 120mm binos in the APM APO series have even better SD (i.e. "Super-low Dispersion) glass.
I believe it was posted here recently that APM is now offering the 100mm version with the SD glass, although I'm not seeing it on the APM website. The website is confusing in that some binos are marked "ED" that have SD glass, and others clearly say SD. SD glass would be the way to go for the best image quality. Yes, it makes a difference if yellow and blue fringing bothers you. The better focused image also goes marginally deeper revealing some fainter detail -- a very subtle but visible improvement.
However, a 100mm bino has only so much effective magnification range. For me personally, approaching and below 1mm exit pupil gets too dim and starts amplifying the problems in my old eyes. If you have young eyes, enjoy!