The vanguard endeavor xf 80a spotting scope provides excellent optical viewing for nature enthusiasts and hunters the scope comes with a large 80mm objective lens and angled eyepiece with 20 60x zoom magnification which is well suited for mid to long range observation the fully multi coated lenses and phase corrected bak4 roof prisms maximise light transmission colour fidelity and ensure superior low light performance from dawn to dusk the nitrogen filled and o ring sealed construction prev