SVBONY SV138 1.25-Inch 45-degree Correct-Image Prism Diagonal Fully Metal for Refractor Telescope

Features 1 Fully multi coatedprisms for superior image fidelity and maximum light throughput2 Fits for 1 25inch telescope eyepiece and focuser3 CNC Manufactured aluminum alloy housing and stainless steel cover4 Wide 45 degree angle makes you view correct image from telescope stand and just look down with a comfortable angle5 Correct upside down and left right reversed image easily which allows view things during daytime in correct position6 Note that the 45 deg correct image diagonal requires 5 8 more focus travel than typical diagonals Not recommended for use in Newtonian reflector or Dobsonian reflector telescopes Specification 1 Brand SVBONY2 Model SV1383 View of Angle 45 Degree4 Type of Prism Roof BK75 Prism of Coating Fully Multi Coated 6 Surface Quality 60 40 7 Profile Accuracy 0 28 Dimensional Tolerance 0 05mm9 Angle Tolerance 5 arcsecond 10 Aperture 27mm11 Fit Filter Size 1 25 Inch M28 5 0 6 12 Brass ring Design Yes13 Housing Material Metal14 Net Weight 151g 5 36oz 0 335lbPackage Includes 1 x SV138 1 25 Inch 45 degree Correct Image Prism Diagonal2 x Dust CoverDetails Picture