The German company Steiner has been producing binoculars aimed at four groups of customers: nature watchers, hunters, tourists and yachtsmen and/or sailors. Two series of new products have been designed with exactly these last two groups in mind: cheaper Navigators and more expensive Commanders XP.
splendid workmanship; high transmission; excellent whiteness rendering; very well corrected chromatic aberration; well corrected coma; low distortion; slight brightness loss on the edge of the field; sharp image in most part of the field of view; excellent quality of antireflective coatings; perfect...
vignetting prisms; noticeable astigmatism; a bit too light area near exit pupils