Diagonals

45-Degree Erecting Prism - 1.25" - D1032

  High quality unit uses compression ring and has a tapered insert tube for better alignment. Provides images that are right side up and correctly oriented. Aperture is about 25mm. Fully multi-coated.   The 1.25" female insert tube on...

90-Degree Erecting Prism with Focuser

This 1 1/4", 90-degree erecting prism is the same as used on our top rated Stellarvue finder scopes. This is a correct image erecting prism. The helical focuser has a rubber grip and provides about .6" of travel. Many purchases these to be able to do...

Baader 2"/90° Astro Amici-Prism with BBHS® coating

2" ClickLock-Clamp and 2" nosepiece Correct image orientation Suited for astronomical observation at high magnification. Hard-silver-coated and protected against aging. Astro quality prism, manufactured to Zeiss standards. The 2" Clicklock...

Baader 45 degree Maxbright Amici Prism

This 1.25" erecting prism works with the Baader Binoviewers and provides a correct image.  45 ° an erecting prism Amici Including 2x Glaswegkorrektor ™ (Glass Path Corrector) and 1¼ "barrel Suitable for all SC telescopes and...

Dielectric Star Diagonal - 1.25" - D1030

The 1.25" star diagonal Comes with a thick, precision, optical flat mirror with an enhanced 99% reflective dielectric coating. Compression ring holds eyepieces firmly. Aluminum construction with carbon fiber side plates. The 1.25" female insert tube...

Dielectric Star Diagonal - 2"- D1028ECF

This diagonal uses a thick, over-sized mirror polished to 1/10th wave. The mirror has a protective, dielectric coating with 99% reflectivity. The body has carbon fiber sides. It has a collet type twist lock on the 2" eyepiece tube and the deluxe 1.25"...

Quartz Dielectric Star Diagonal - 2" - D1040Q-TL

This is the most advanced version of our most popular diagonal. It was designed by Vic Maris and uses a thick, over-sized mirror, polished to 1/10th wave. Unlike most star diagonals made of inexpensive BK7 glass, this mirror is made with low expansion...

Stellarvue 2" 90 Degree Correct Image Prism Diagonal

This fully-multicoated, correct-image 2" erecting prism is used on our super-finder and provides a generous wide field when using our 2" reticle eyepiece. The erecting prism using a twist lock mechanism and has a clear aperture of 46 mm.