The Visionary B4 range of binoculars provide excellent value for money featuring high quality BAK4 prisms and multicoated lenses with excelent definition and clarity, the B4 range has a model suitable for most applications.
BAK4 prisms ensure a brighter image throughout the range of magnifications by maximising light transmission. Efficient use of the light gathered is particularly important at high magnifications or when using smaller front lenses, as images appear darker.
The 8×40 model is well suited to birdwatching and nature viewing, the combination of 8x magnification and 40mm front lens results in a bright image and a very wide field of view.
