High quality optics. The circle of the image is clear, wide-angled and without distortion. No vignetting in bright daylight. Clear focus with individual diopter scales. Just remember your settings and when you get them (the binoculars) back, re-enter the settings and you're done.
Nikon ACULON A211 8248 10x50 Binoculars (Black)
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π Nikon ACULON A211 8x42 Binoculars: High Quality Optics for Exceptional Viewing
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