Diagonals - Erecting prisms - Binoviewers

Beginner-friendly erecting lens for reflectors (reflector telescopes)...

This fully-coated erect image diagonal offers correctly oriented images with excellent sharpness and contrast...

This high quality 90-degree multi-coated mirror diagonal for refractors allows you to take advantage of the wider field...

This high quality 90-degree multi-coated mirror diagonal for refractors allows you to take advantage of the wider field...

Open up a new larger field of view with the 2" star diagonal and 2" eyepieces, see deep sky objects with significantly m...

This fully-coated erect image diagonal offers correctly oriented images with excellent sharpness and contrast...