Choosing High Power Eyepieces 6mm 7mm And 8mm Telescope EyepiecesFor my other (collectible) items. telescope monocular solar eyepiece, ocular red filter element antique brass. Be sure to add me to your? _gsrx_vers_841 GS 7.0.16 (841). See my other auctions for rare antique telescope lenses, eye-pieces/oculars, loose elements of lenses and eyepieces.