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These binoculars don’t adjust narrow enough for my eyes—not enough to produce one composite image. I have a small head and narrow eye-width and often have a problem with inexpensive binoculars. Otherwise the binoculars are well made, somewhat heavy (10x50), and yield a decent image. But. I stand by my Nikon Monarchs for image quality and adjustability for bird watching. I will return these binoculars.