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TelescopeMan Diagonals by Joe Lalumia 6 years ago 17 minutes 2 919 views TelescopeMan Diagonals

1.25 inch 90 degree angle mirror to ensure that the image is upright, but left and right reversed. 1.25-inch 90 degree mirror diagonal adapter + k8mm eyepiece for telescope telescope diagonal prism info body material plastic adapter telescope refractor telescopes adapter eyepiece 1.25inch refraction angle 90-degree size8090mm k8mm telescope eyepiece info model k8mm eyepiece optical system kellner type eyepiece focal length 8mm lens coating broadband coating lens material optical glass lens frame material aluminium alloy interface size 1.25 (31.7mm) patch flding rubber color black+silver.