This is a detailed 3D model of the telescope. In the scene (max format) are 4 models of telescopes. They differ in colors (shown in the preview). These models can be in your scene both in the foreground (a fairly dense polygonal mesh) and in the background. With most objects, you can reduce polygon by removing the chimfer and turbosmoth modifiers.
P.s Models were created in 3Ds Max 2016 without plugins (regular 3Ds Max can open them despite warnings)P.s.s You can always write me an email (evgeniy.903@protonmail.com) if you have questions or have any difficulties ;-)