3d model of a magnifier - an optical lens fixed in metallic ring with a wooden handle.
Modeled with Blender 2.76, rendered via Blender Cycles (#1 thumbnail image). Another thumbnails (#2-5) rendered from viewports via OpenGL.
Native BLEND file have lighting and render setups in Cycles mode, and also node shader materials (only in BLEND file!) as shown in #1 thumbnail image. OBJ and FBX formats exported from Blender and submitted as a meshes/objects as shown on #2-5 thumbnails.