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SVBONY Diagonal Adapter Zenith Diagonal Mirror Prism 1.25inch 45 Degree Erecting Prism Optical Prism Inside for Astronomical Telescope Eyepiece

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$20.39

$ 8 .99 $8.99

In Stock

About this item

  • High-quality prism diagonal provides a comfortable and sharp 45 degree viewing orientation for great daytime terrestrial views and night time astronomy applications for telescopes
  • High optical lens transparency;the large quality prism allows more light transmission;so that delievers a clear image
  • Standard 1.25 " diameter for filter thread for any 1.25" filter;fits for the standard 1.25" telescope eyepiece
  • Zenith mirror has dust cover keeping the lens clean,so that provides clear and sharp images and extends the service life
  • Easily correct upside down and left-right reversed image; It produces an image that is oriented properly; which means the image is upright and correct from left to right; allow you view things during daytime in correct position;It's a great birthday christmas gift



Product Description

SVBONY 45 degree erecting image diagonal prism for telescope and any standard 1.25" eyepiece

zenith mirror zenith mirror diagonal adapter diagonal mirror

Typically; from your telescope you see the picture standing upside down; If you want to observe nature; with this SVBONY 45-degree erecting prism transform your telescope into a telescope for nature observation,easily correct upside down and left-right reversed image.

It’s easily correct upside down and left right reversed image;makes it easier to navigate the day and night skies with telescope in correct position You can insert it into the 1.25" telescope silver terminal;the other end with a screw fixed 1.25" eyepiece;it can also be used to observe astronomy;nebula;cluster;nebula scattered with high brightness and excellent optical properties

Attentive design

Use a clamping screw made of aluminum to fix your eyepiece. So you can even look sideways through your telescope - the eyepiece does not sit and fall out. From now on nature lies at your feet: even if it is far away.

Comfortable observation with 45-degree

It can be used to observe objects with comfortable angle; it's convenient to look at the zenith of the sky and close to horizontal observation. It produces an image that is oriented properly; which means the image is upright and correct from left to right.

zenith mirror zenith mirror diagonal adapter diagonal mirror

High Quality

The prism is made of genuine optically processed glass; high quality optical prism inside rather than a mirror which makes your image clear and sharp.

Anti-fall design

The shape is an arc contour design, with a drop-resistant buffer space, if you accidentally drop it, you don't have to worry about damaging the optical prism inside

With dust cover

The dust cover keeps the lens clean to extend the service life

always keep your lens clear

Super easy to use

Simply insert the erecting prism into the 1.25 " telescope and enjoy upside down and left-right images with your eyepieces -Bird watching; watching the deer inside the forest; watch the scenery on the mountain or the cruise ship at sea.

Package Includes:

  • 1 X 1.25'' 45-Degree Zenith Mirror

Features:

Body Material: Plastic
Size: 2.1.25inch
Observation angle: 45°
Prism Type: K9
Optical Path Length: 85mm
Dust Cover: Yes
Screws: M3
Net Weight: 83g/0.18lb

Plasma52
Reviewed in the United States on August 19, 2024
Edited review - A little while after returning it, Svbony contacted me through Amazon and asked what my issue was. After telling them, they offered to make it right, even though I had returned the bad one. The one they sent appears to be in correct focus and works great for my use. I am a very new telescope user/builder, so I don’t know what an experienced user would think. Original review - “The one I received, had an issue with the mirror (don’t think it was a prism). It appeared to not be a first surface mirror, so there was a double image giving an out of focus view. Otherwise, it was nicely made. I returned it and didn’t replace it.”
Popoff
Reviewed in the United States on November 5, 2024
I love the way it looks on my 70mm EQ.
T. Pollard
Reviewed in the United Kingdom on November 16, 2024
Makes my telescope easier to use with the kids when the image is orientated in the right direction… now we just need the weather to improve…
TAD
Reviewed in the United States on January 27, 2024
I got this because it states in discription that it can be used with all scopes with a 1.25 scopes. But It does not evidently. I have an 8 inch f6 1218 dobsonian reflector and it doesnt seem to get a focus at all. I do not use a camera. If anyone has any ideas on what is wrong please let me know.
Michael J
Reviewed in the United States on April 6, 2023
SVBONY is a China-based company with a reputation for producing better than average optics at better than average prices. That led me to believe this would be a good choice in an erecting prism, and for the most part, it is. Image quality is not bad for the price, and construction is, well adequate. You don’t expect precision milled parts for this price, and you don’t get them. As you might expect, it’s a mix of sheet metal and plastic parts. While it’s not exactly rugged, it should hold up to use with reasonable care. I wouldn’t recommend it for astronomy, but it’s useful for adapting an astronomical telescope for occasional terrestrial use. If you’re looking for a higher quality prism for birding or target spotting, SVBONY makes a higher quality unit for around $40.
Dealzguy
Reviewed in the United States on September 15, 2021
For this price, it is a decent 45 diagonal and it is very easy to locate things as you see in real life with correct left right and upside orientation. However the glass or plastic prism used severely streaks when celestial objects are viewed. This is great for land viewing using your telescope as a spotting scope day time. It is not a bad product but it is built just to the price. Other than the streaking the clarity is very good.
Michael C.
Reviewed in the United States on August 3, 2021
Just like every other SVBONY product I have bought this is great quality and good optical components. I would recommend this to anyone I know that uses scopes. It does as advertised and produces views that are upright and left/right proper. What you see with your naked eye is what you see though this erecting prism adapter.5 STARS
Jerome M.
Reviewed in the United States on July 22, 2021
My telescope (like most telescopes) didn't have the right mirror configuration for viewing objects on planet earth. The earth bound objects appear to be upside down. When viewing objects in space, this is less of a problem.This affordable and well engineered item fixes the upside down issue. It was easy to install and worked immediately.
hwm
Reviewed in the United States on January 18, 2021
Not a high end unit, but for an average telescope user like me, it's perfect. Good value for what it costs.
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