Gosky ED Double Focus Spotting Scope with 20-60x 80mm with Smartphone Adapter, Spotting Scopes with Extra Low Dispersion, Perfect for Bird Watching, Target Shooting, Hunting, Wildlife Scenery
【Extra-low Dispersion】ED glass has particular optical materials which have a unique characteristic of dispersion when combined with other glasses it minimizes the effects of the secondary spectrum and when you compare this with an achromatic lenses made with standard glass, ED glass reduces chromatic aberration and therefore the color fringing to a remarkable degree.
【FULL MULIT-COATED 80mm GREEN FILM OBJECTIVE LENS】 Multi-coated lenses light transmitting up to an incredible 98% per surface, this means you can get more picture brightness. BAK-4 provide higher quality glass yielding brighter images and high edge sharpness. The 80mm objective lens allow more light enters the spotting scope than 60mm objective lens, so the brighter the image.
【Dual speed focus system】 New design coaxial two-speed focusing wheels allow for SMOOTH & ACCURATE focusing. Fast focusing wheel helps you lock the target quickly, fine focusing wheel zooms in on the target and gets more detail
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