TPO 45 Erect Image Diagonal - 1.25"

  • Diagonal Design: 45 Degree Erect Image
  • Viewing Angle: 90 Degrees
  • Dust Caps Included
  • Size: 1.25 Inch
  • Sale
  • Regular price $29.95

More on the Way in 14 - 28 Business Days

Free Shipping
Add to Wishlist
Already have gear? Trade it in for cash or new equipment.

Accessories Added

OPT Telescope Expert

Want Help?

Ask Our Telescope Experts


TPO 45 Erect Image Diagonal - 1.25"

Tired of getting on your knees to use your refractor of catadioptric-style telescope? Then stop breaking your back or craning your neck... TPO is here to help!

The TPO 45 degree Erect-Image Diagonal accepts all 1.25 inch eyepieces and fits into focusers (either 1.25 inch in diameter or a 2 inch focuser with a 2 inch-to-1.25 inch adapter) that accept 1.25 inch barrels. It automatically places whatever eyepiece that's put into it at a 90 degree angle for more comfortable viewing! And what's more... The image remains correct. The view stays exactly the same as if you were looking at it unaided - right stays to the right and left stays to the left. No reversal of image!


TPO Product Number: D125EI45


Angle45 Degree
Diagonal Barrel Size1.25"
Dust Caps IncludedYes
Free ShippingYes
Warranty2 Year Warranty
Customer Reviews
3.0 Based on 2 Reviews
Write a Review Ask a Question
  • Reviews
  • Questions

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
Reading is Fundamental

The diagonal works EXACTLY as advertised. The description specifies refractor or catadioptric reflector. It's not designed nor sold for Newtonians, hence the 1-star rating should go to the other reviewer for his failure to READ and not to the product.

***** image

This item will not focus an image on a Newtonian reflector which had to be returned. It did not work with any eye pieces 25mm or 20mm and more powerful through 4mm of course on a Celestron PowerSeeker 114AZ.