Celestron – 45-Degree Erect Image Diagonal – 1.25′ – Use Your Astronomical Telescope for Daytime Terrestrial Viewing – Right-Side-Up & Correctly Oriented Images in Refractors & Schmidt-Cassegrains

5 reviews for Celestron – 45-Degree Erect Image Diagonal – 1.25′ – Use Your Astronomical Telescope for Daytime Terrestrial Viewing – Right-Side-Up & Correctly Oriented Images in Refractors & Schmidt-Cassegrains

1. 

   Rated 5 out of 5

   – January 13, 2024 Asha Bahringer

   I love this product!It does exactly what it says. My wife purchased a good sized telescope (Nexstar 8SE) for my birthday and we’ve been learning the ins and outs of using it. I have purchased several lenses and this is by far one of the most useful.The Good: Rights the image – This is handy for determining exactly what is on TV in the neighbor’s apartment across the street, block, city (depending on your particular hardware) Also for Planets/Celestial bodies.Makes it much easier to manually move the telescope by hand or with the electronics if you have them. If you see it move up and left, you move the telescope up and left, not inverted and backwards.The Bad: None. I love reviews like this.Verdict: If you are tired of trying to invert things in your mind and staring at upside down stuff, buy this, you won’t regret it.

2. 

   Rated 5 out of 5

   – June 23, 2024 Fernando Quitzon

   I bought this so I could use my reflector telescope for terrestrial viewing. Being new to telescopes, I didn’t realize that the length of the prism adds to the distance your focuser needs to be able to travel. With the prism in place, I couldn’t focus even with the focuser all the way in. The solution is to add a Barlow lens in front of the prism, which increases the focal length. With a 2x Barlow in place, it now works exactly as intended.I’m only giving 4 stars because Celestron customer support just told me that it wouldn’t work with my telescope. I figured out how to fix the problem on my own.

3. 

   Rated 5 out of 5

   – September 23, 2024 Verna Mohr

   The media could not be loaded.I’m quite satisfied with this 45° Erect Image Prism for Refractors.The whole item is made of metal.The thumbscrew is quite large and easy for tightening or loosening.The end to go into the focuser has internal threading 13/16″ that’s more than 3/4″ of threads all the way, more than enough to attach filters etc.The silver end which goes into the focuser as shown in advertised picture can be unscrewed from the 45° diagonal.The image is seen UPRIGHT, LEFT is LEFT and RIGHT is RIGHT as if you’re looking through a binoculars.It came with caps on both ends to protect from dust.NOTE: One thing I noticed, on the advertising of this item, it did not say it was a 45° diagonal prism even in the description.It’s only when it arrived at my home I saw the box labeled “45° ERECTING PRISM”NOTE: For those who think this is a 90° diagonal prism it’s not so, it’s a 45° diagonal prism so be aware.NOTE: This is a Prism diagonal and not a Mirror diagonal. From what I’ve read, the Prism is better than the Mirror. Only the Die Electric Mirror diagonals are the best but expensive.

4. 

   Rated 5 out of 5

   – November 19, 2024 Brando Weissnat

   I wanted to look at terrestrial objects and got tired of inverted and reversed images.The fit an finish are consistent and the optic itself is suitable for looking at distant objects on the ground.The 45 degree angle is a lot more comfortable than the 90 degree for ground objects.I’m currently using it to observe Space X operations in Texas up to a mile away. I can see individual rivets and tiles on the Starship.This has expanded the utility of my Celestron NexStar 127SLT.Well worth the money.

5. 

   Rated 5 out of 5

   – December 9, 2024 Mrs. Maye Littel

   Perfect for looking at distant landscapes, or wildlife, across the land or over the ocean.