Lenses are sold in diopter power. The "typical" power to diopter conversions are listed below. Apparent magnification of each diopter varies based on the actual peep to pin measurement of your setup. You can calculate what your actual lens power would be for each diopter by using this chart.
Diopter / "Typical" Power: ( +.25 = 2x ) (+.37 = 3x ) (+.50 = 4x ) (+.62 = 5x ) (+.75 = 6x ) (+.87 = 7x ) (+1.0 = 8x )
Vitrum Duplus Doublet Lens
The New Feather Vision Vitrum Duplus is the newest and most advanced lens in the Feather Vision line of lenses. Working with some of the best optical engineers on the planet, Feather Vision spent over 2 yrs with one primary set of criteria to meet; the Vitrum Duplus must outperform all other options available on the market…. And it does just that.
The new Vitrum Duplus is a Doublet style lens, utilizing 2 different materials fused together. The materials complement each other by helping to reduce the chromatic dispersion and spherical aberration. In other words, they prevent the different color bands from dispersing, providing the archer a more precise focal point which creates a crisper target.
So, what can you expect out of the new Vitrum Duplus? Archers will see a crisper image, with a more advanced color separation and improved light gathering beyond any lens ever seen on the archery market. This provides a big advantage in low light situations.
The new Vitrum Duplus has a custom made anti-reflective coating that was specifically designed for archery and a superior Hydrophobic and oleophobic layer helping your lens stay smudge free during your archery game.
Come see for yourself why Feather Vision is and always will be the leader in optics in the archery industry!
