大量供应广角镜头1.7mm 1.8mm 1.9mm 2.1mm 2.4mm 2.5mm 2.8mm product name:kh2820 specification: 1.sensor size 1/3 2.wavelength λ= 3.focal length(efl) f= 2.8 mm 4.f/no(infinite) f/no= 2.0 5.back focal length bfl= mm 6.flange back length fb= mm 7.field of view(diagonal) = 120o 8.optical disitorion(diagonal) 9.thread size m12xp0.5 10.element 5g+ir 联系人:李先生 电 话:189 2848 1666