Orion 8787 1.25-Inch Correct-Image Star Telescope Diagonal
For terrestrial or astronomical use, this1.25" 90 degrees diagonal produces a right-side-up, no reversed image. Provides a view through your telescope that matches normal daytime orientation for added comfort and ease of use. Requires no extra focus travel. Fully coated prisms for superior image fidelity. Not intended for use with reflector telescopes