I am on the hunt for some "giant" binoculars for stargazing, something in the 80-90mm range, and around 12-15x. During my search on the Web, I came across a German brand called "Steiner". They make an 15x80 "Senator" binocular that sells for about $1000 at online stores like Adorama. What I want to know is, are these any good for astronomical viewing? All the information I can find on them talks about how ruggedly built they are (apparently they were originally designed for police/military use), but no mention is made to thinks like the quality of the coatings, edge-of-field performance, etc. Any opinions would be much appreciated!