Product Overview
Extra-low Dispersion Dielectric Coatings Fully Multi-Coated optics Focus knob BAK-4 roof prisms Lightweight rubber-coated magnesium alloy chassis
The Frontier APO offers extreme clarity, flat field vision and excellent chromatic aberration control for a stunning wide-angle image.
APO & ED X models benefit from Extra-low Dispersion glass for controlled chromatic aberration and the elimination of colour fringing.