Home Masuyama 2" Eyepiece 60mm Masuyama 2" eyepiece 50mm Masuyama 2" Eyepiece 45mm Masuyama 2" Eyepiece 32mm Masuyama 2" Eyepiece 26mm Masuyama 1.25" Eyepiece 16mm Masuyama 1.25" Eyepiece 10mm [MOP-16] Masuyama 1.25" Eyepiece 16mm Focal length 16mm Apparent field of view 85 degree Eye relief 10mm Lens configuration 5 elements in 3 groups Coating Fully multi-coated Physical length 68mm Outer diameter 41.5mm Weight 138g