is 111.05 KB, has a resolution of 1280x835 pixels and was uploaded on January 21, 2020 @ 3:11 pm by user: felixaht. It is filed under the tags: triangle, binoculars, roof prism, ignazio porro, prism. Click the blue button at the top to freely download: Binoculars Porro Prism Porro–Abbe Optics png.