Televue 2 inch 90 Degree Diagonal Enhanced

Televue 2 inch 90 Degree Diagonal Enhanced Reviews

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This is the same 2-inch Star Diagonal that comes with the Tele-Vue 85 and the Pronto. Exquisitely crafted to fold light exactly 90 degrees. The mirror blank is polished to 1/10th the wavelength of light and vacuum coated with enhanced aluminum 96 percent reflectivity. Then it's overcoated to protect the delicate mirrored surface. To ensure the optical alignment of the diagonal, the body is CNC machined from one solid block of aluminum. For maximum contrast anti-reflection threads are cut into the inner surfaces, and 48mm filter threads are included. All 2" diagonals feature brass clamp ring for extra secure, no-mar operation.

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Mar 25, 2011 19:13:03

Orion 1.25" Correct-Image Star Telescope Diagonal

Orion 1.25" Correct-Image Star Telescope Diagonal Reviews

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Orion 1.25" Correct-Image Star Telescope Diagonal Feature

• For terrestrial or astronomical use, this diagonal produces an right-side-up, nonreversed image
• Fully coated prisms for superior image fidelity
• Requires no extra focus travel

This precision 90-deg star diagonals features fully coated prisms, delivering superior image fidelity. Housings are plastic with thumbscrew to secure the eyepiece in place. This 90-deg diagonal yields correctly oriented images (right-side up and nonreversed). It's perfect for terrestrial use or for amateur astronomers who want a view that matches the orientation of a star chart. Requires no extra focus travel.

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• 1.25" Orion 13% Transmission Moon Filter

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Mar 22, 2011 18:35:03