大量供应3.5-8mm自动变焦镜头 product name:kh3.5-8mm specification: 1.sensor size 1/3ccd 2.wavelength λ= nm(color) 3.focal length(efl) f= 3.5-8 mm 4.f/no(infinite) f/no= 1.6 5.back focal length bfl= mm 6.flange back length fb= mm 7.field of view(diagonal) = 89-35o 8.optical disitorion(diagonal) < % 9.thread size cs 10.element 7g