This 3D model was originally created with Sketchup 8 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 ARGO ADVENTURE binoculars 7x50 Field of view, 372 ft at 1000 yards coated optics. Please rate! For questions contact: Argo.industries@yahoo.de