Diagonal mirrors and prisms result in images that are correctly oriented up-and-down but reversed left-for-right. For terrestrial observing a fully correctly oriented telescopic image is desirable. The Meade #928 Diagonal Prism accomplishes this image correction and places the eyepiece at a convenient 45° viewing angle.
Use the #928 to use 1.25" eyepieces in catadioptric telescopes with a 1.25" visual back or in refractors with a 1.25" focuser draw-tube. Item is not meant for use in Newtonian or Dobsonian telescopes. Fully coated for high light transmission.
Product carries full one year Meade factory limited warranty (within US/Canada only).