I used my LX90 for the first time on Jupiter tonight. Started out with the 22mm Nagler which I was using for the initial alignment [113x]. When I slewed over to Jupiter, I was amazed at the finer details compared to my apo. I could see Io's shadow on the planet, and the Great Red Spot had a tail from where it's unraveling. The cloud belts were very well defined with knots from swirling clouds. The moons were also much more defined. Different sizes and colors. Beautiful.
Next eyepiece I decided to use was 12mm. It seems to be the sweet spot for high mag [208x] on most targets. Not so much this time... Jupiter was cloaked in a bright halo ghost image. My first thought was the eyepiece may have been fogging from coming out of the cool house to the 85º heat & 90% humidity. Tried another eyepiece, 10mm = f/ratio. Same problem. I ruled out the eyepiece being the problem after using several different models & focal lengths. I then remembered having a similar issue in the past with Sirius, though not nearly as bad.
How would you combat this problem? Is this a common issue with SCT's, or is it an issue with my LX90? I was using a dew shield with a flocked interior. Should I try flocking the inside of the optical tube? Is there an easier fix that wouldn't require taking the scope apart? Any feedback is appreciated!