Need to put some lens covers on a Vortex Razor HD Gen III. Only dimensions I can locate for the scope are 1.3" objective lens and 1.8" for the eye lens. Seems like all things lens covers are measured in metric so converted 1.3"=33.02mm(this is also a '24' whatever that means). Eye piece lens 1.8"=45.72mm. The eye piece also has a focus ring that I can only assume will be rendered inoperable with the lens cover.