Photographic and optical apparatus and instruments, namely, photographic objectives and their parts, namely, protective lens covers, [ adapter rings for attaching objectives on cameras, lens hoods; ] photographic lenses and their parts, namely, lens hoods [, lens screens, plastic rings with numbering to indicate aperture, focus and fstop, side grips and exposure meters; optical lenses and their parts, namely, adaptors; range finders, telescopes and their parts, microscopes and their parts, ph...