130x Feature:Zoom c-mount LensWorking distance: 70mm-380mmField of view: 7mm-43mmFocal length: 50Interface: C CS mountInstall diameter:40mm or 50mmMagnification Power by 0.12 - 2.5X (about 12 - 130X on the display)Size: 30mm(L) * 84mm(DIA)Old 130x Feature:Zoom c-mount LensWorking distance: 40mm-200mmVisual field :2.4mm-32mmFocal length: 40Interface: C CS mountInstall diameter:40mm or 50mmMagnification Power by 0.12 - 2.2X (about 8X - 130X on the display)Size: 115mm(L) * 40mm(DIA)40mm 130XFeature:aterial: Metal and GlassOptical Power:0.1X-2.0XElectronic Magnification :130XInstallation:C/CSImage format:2/3Aperture(D/f): F3.5Object distance:1.8mm-InfinityWorking distance:50mm-InfinityDistor tion:0Resolving Power:1000WIR CUT FilteR:400-700Dimensi ons:28X99mmZoom ratio:15:1Working diameter:50mmWorking distance 50mm,1/3sensor:2.4*1.8mmWorking distance 50mm,1/2sensor:3.2*2.4mmWorking distance 50mm,3/2sensor:4.4*3.3mmWorking distance 100mm,1/3sensor:8.7*6.5mmWorking distance 100mm,1/2sensor:12*8.7mmWorking distance100mm,3/2sensor:8.7*6.5mmWorking distance200mm,1/3sensor:21*15mmWorking distance200mm,1/2sensor:28*21mmWorking distance200mm,3/2sensor:38*28mmWorking distance290mm,1/3sensor:31*23mmWorking distance290mm,1/2sensor:41*31mmWorking distance290mm,3/2sensor:57.7*43mmPackage incluede:Zoom C-mount Lens X1(40mm or 50mm)