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Celestron 45-Degree Erect Diagonal (1.25-Inch)

  • mfr: 94112-A
  • SKU: 94112A
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Product highlights

  • Great accessory for daytime terrestrial viewing with telescope
  • Produces right side up and left-to-right images
  • Inserts into 1.25-inch focusers or visual backs
  • Accepts standard 1.25-inch- eyepieces

Celestron 45-Degree Erect Diagonal (1.25-Inch)

The Celestron 45-degree erect image diagonal is a great accessory you could use to adapt your telescope for terrestrial observation. If you look through your microscope with the standard mirror or star diagonal installed you will notice that objects may be either upside down or flipped. This is fine for celestial observation but can be a bit confusing for terrestrial observing. Fortunately there is a solution for that; this is where the 45-degree image diagonal comes in, it enables you to view terrestrial images without all the distortion. By simply removing the standard diagonal from the telescopes focuser or visual back and installing the Celestron 45 degree erect image diagonal you will see the difference.


Optical Tube Assembly
Diagonal Function Prism (Erect Image) Diagonal
Eyepiece Barrel Diameter 1.25"
Weight Not Available
Blocking Filter Not Available


Customer Questions
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You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges. 
You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days. 
If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact [email protected] with your order number and a description of the damage. 
Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at [email protected], or send us a message here.  
We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead. 
If you ordered a kit, you must return all components and accessories to receive a full refund. 
If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund. 
We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900. 
Most items can be returned within 30 days for a full refund. Click here to read our full return policy. 

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Ratings and reviews

Celestron 45-Degree Erect Diagonal (1.25-Inch)

Celestron 45-Degree Erect Diagonal (1.25-Inch) SKU: 94112A

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