[astropat]

Hi friends,

Recently I got a 20*80 triplet binocs. When I look at bright stars (and only bright stars) with the binocs, there is a red+blue "corona" around the star. Red on one side and blue on the other. Is this frequency dispersion normal (i.e. binocs are not apochromatic)? Or is the optics of my new triplet binocs misaligned?

Thanks,
Patrick