Meade #918A 90 degree 1.25" Diagonal

  • Standard mirror diagonal supplied with most Meade LX-200 telescopes.
  • Designed for 1.25-inch focusers, accepts 1.25-inch eyepieces.
  • Allows for comfortable viewing when objects are near the Zenith.


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  • Regular price $31.94

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Meade #918A 90 degree 1.25" Diagonal

Mirror diagonals let you view objects at a 90 degree angle from the direction the telescope is pointing. This means your viewing session will be much more comfortable - especially when the telescope is pointing straight up! The Meade 918A was designed to fit all 1.25-inch focusers and visual backs, and accepts any 1.25-inch eyepiece.

Note: If you are land and wildlife viewing, it is best to use the 45-degree Erect Image diagonal. This diagonal will give you an image that appears right-side-up, but reversed from left to right. The 45-degree Erect Image diagonal will display a correctly oriented scene in all directions (right side up, and left-to-right correct).




Angle90 degree
Diagonal Barrel Size1.25"
Diagonal TypeStar Diagonal
Free ShippingYes
Warranty1 Year Warranty


  • Meade #918A 90-degree 1.25-Inch Diagonal Mirror


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4.3 Based on 3 Reviews
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Donald R.
United States United States
Meade #918A 90 degree 1.25" Diagonal

As advertised it fit my telescope perfectly. I really wanted this to work as this was my late son's telescope and he had so much fun with it when he was alive. Now I can enjoy it and think of him as I do so.

Terry B.
United States United States
Meade 1.25" Diagonal

I gave this as a gift to replace a missing diagonal. It fit perfectly and enabled him to use the telescope. He seems to like the quality of the mirror.


I'm concerned about this prism (made in China and the quality control behind it. The one I received with my ETX LS6 had large gap on the screw down cover and a rubber shim out of place.