3 Matching Products
90 degree Erecting Prism designed to fit 1.25/31.7mm focusers and eyepieces.Designed to give a more comfortable viewing position, and to correct upside down images.
Perfect for both astonomical and terrestrial observing, these fully-coated diagonals offer correctly oriented images with excellent sharpness and contrasts. Designed for 1.25 Inch/31.7mm focusers and eyepieces.
The Lightwave Premium 45 Degree Correct Image Diagonal allows you to use your astronomical telescope as a high-quality terrestrial spotting scope with your favourite astronomical eyepieces. Astronomical telescopes produce an image which is not only upside down, but is reversed left to right. This 45 degree diagonal correctly orientates the image, so you