SVBONY 1.25 inches 90 Degree Zenith Mirror Diagonal Adapter Erect Image Fully Metal for Refracting Telescope Eyepiece Lens
Electronics > Camera & Photo > Accessories > Telescope & Microscope Accessories > Telescope Accessories > Diagonals
About this item
- Standard 1.25'' diameter; fit for 1.25'' eyepiece and telescope focuser;Note;not suitable for Newtonians
- Work with refractor and catadioptric telescopes;not for reflector telescope
- Wide 90 degree angle;you can view correct image from refractor telescope stand and just look down with a comfortable angle
- Super easy to use;just insert into 1.25'' telescope at the silver end;the other end fix 1.25'' eyepiece by the screw
- Body material is full metal;optical glass lens provide clear and sharp image With dust cover always keep your lens clear prolong life
Reviews
★★★★★
Verified Purchase
Much clearer than original Diagonal
Installed as a replacement/upgrade for my plastic original diagonal for the Celestron 102mm refractor. It is much clearer and sharper.
It appears a wider angle than the diagonal originally installed. The upgraded eyepieces are the much better cheaper Celestron eyepieces. I bought the more expensive Celestron eyepieces
The diagonal only problem is that it does not have right/left correction of image. But because it is clearer I decided that not having the correction is well worth the sharpness of the view.
These upgrades has made the the stars pinpoints of light. It is much easier to see other things when the image is sharp. The telescope is worth upgrading.
★★★★★
Verified Purchase
Al metal housing mirroe diagonal, full aperture.
Quite inexpensive mirror diagonal that is all metal construction except for the mirror. Based on the 90% reflectivity and a posted answer from Svbony tech support it is not a dielectric coated mirror but an aluminized one, expected for the price point. In a refractor the image will be upright but reversed left to right. A roof prism diagonal is required to give a correct left/right image as provided by binoculars or a spotting scope.
★★★★★
Verified Purchase
Excellent for astronomy...
Works fine. The bright and colors is better than the original diagonal that came with my telescope.
The only point to considering is when use in land observations the image looks "mirror viewing", and if you comparing the real view with eyepiece view, the right side of the tree (for example) will be see in the left.
So, if you want to move the telescope seeing through the eyepiece, you must go to the different side that you wanna see.
★★★★★
Verified Purchase
Absolutely worth the money!
Added this item as an upgrade to an 80mm Celestron refractor telescope. The increase in image brightness and overall sharpness was immediately apparent. Features on the lunar surface were much more defined and clear compared to the stock 90 degree diagonal that was supplied with the scope. Stellar images were also sharper with less distortion and deep space objects , specifically M57, began to reveal some detail not previously seen.
★★★★★
Verified Purchase
For regard for only
This didn't work for my C8 SCT but then that was my fault for not reading the description as it says "for refractors" Silly me! However I'm going to keep it as it may be useful someday or I can probably get some kind of adaptor. It seems very good quality and if you have this kind of telescope then buy it.
★★★★★
Verified Purchase
Quality product
Definitely an upgrade compared to the diagonal that came with my telescope. It’s also a 90 degree diagonal compared to the 45 degree one that came on the scope. Makes viewing objects higher in the sky easier on your neck.
★★★★★
Verified Purchase
Protec ya neck
This is a nice diagonal. Gives nice bright views. Upright mirrored image like most diagonals. Unfortunately I wanted a correct image diagonal so I don’t use this as much. Very well built and has the same look as the two inch diagonal I got from Sky-Watcher.
★★★★★
Verified Purchase
Much easier to use.
Much better than the 45 degree that came with my C90. I should have replaced this years ago.
★★★★★
Verified Purchase
Well built
made of a lot of metal and good plastic. VERY happy with it.
★★★★★
Verified Purchase
A good product
I replaced the original diagonal in my telescope. It is much better now. Recommend if your telescope comes with a crappy diagonal.
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Zhumell 2" 2x ED Barlow Lens with 1.25" Adapter
Question & Answer
Question :
will thie work with an astro fi 130mm reflector?
Answer :
Dear customer ,
Thanks for your contact.
No,it doesn't fit.
For accessories;we provide 2 months warranty;within 2 months;you can return for refund or replacement.If you have any other questions about warranty;please contact us freely;we will work with you win to win.
If my reply still doesn't answer your question well or you want to know more details about this product,could you please contact us by message on Amazon? Because the customer's message can be seen in the first time on Amazon, and will solve the problem as soon as possible. Once I receive your response, I will try my best to answer your questions. Sincerely look forward to your reply.
Best wishes !
Kelly
Question :
does this have a compression ring?
Answer :
Dear customer ,
Thanks for your contact.
Yes,it has.
For accessories;we provide 2 months warranty;within 2 months;you can return for refund or replacement.If you have any other questions about warranty;please contact us freely;we will work with you win to win.
If my reply still doesn't answer your question well or you want to know more details about this product,could you please contact us by message on Amazon? Because the customer's message can be seen in the first time on Amazon, and will solve the problem as soon as possible. Once I receive your response, I will try my best to answer your questions. Sincerely look forward to your reply.
Best wishes !
Kelly
Question :
Will this work with a gskyer 80mm refractor telescope?
Answer :
Dear friend,
Sincerely hope that you will know that the interface for our products is 1.25 inches. If you want to know more details, please feel free to contact me by email on Amazon. Once I receive your response, I will try my best to answer your questions. Sincerely look forward to your reply. Kelly
Question :
Will this adapter work on a svbony sv503 telescope 80ed f7 telescope?
Answer :
Dear customer ,
Thanks for your contact.
Yes,it can.
For accessories;we provide 2 months warranty;within 2 months;you can return for refund or replacement.If you have any other questions about warranty;please contact us freely;we will work with you win to win.
If my reply still doesn't answer your question well or you want to know more details about this product,could you please contact us by message on Amazon? Because the customer's message can be seen in the first time on Amazon, and will solve the problem as soon as possible. Once I receive your response, I will try my best to answer your questions. Sincerely look forward to your reply.
Best wishes !
Kelly
Question :
Will this fit a moutec telescope?
Answer :
Dear customer ,
Thanks for your contact.
Yes,it fit telescope with 1.25inch focuser.
For accessories;we provide 2 months warranty;within 2 months;you can return for refund or replacement.If you have any other questions about warranty;please contact us freely;we will work with you win to win.
If my reply still doesn't answer your question well or you want to know more details about this product,could you please contact us by message on Amazon? Because the customer's message can be seen in the first time on Amazon, and will solve the problem as soon as possible. Once I receive your response, I will try my best to answer your questions. Sincerely look forward to your reply.
Best wishes !
Kelly
Question :
The description says it is an upright image but mirrored left to right. Is this a correct image or not?
Answer :
Dear friend,
I hope you are well!
Thanks for your inquiry. At the same time, I sincerely hope you know that our product: The Svbony fully metal 1.25" Mirrors Diagonal zenith mirror offers an upright figure which is but turned backward in left and right position.
This is a normal imaging.
If my reply still doesn't answer your question well,could you please contact us by message on Amazon? Because the customer's message can be seen in the first time on Amazon, and will solve the problem as soon as possible. Once I receive your response, I will try my best to answer your questions. Sincerely look forward to your reply.
Best wishes !
Kelly
Question :
Does it thread to a standard sct thread? if not, how can i adapt it?
Answer :
Dear customer ,
Thanks for your contact.
No,it can't thread to a standard sct thread.You need to convert the SCT interface to a 1.25-inch interface adapter.
For accessories;we provide 2 months warranty;within 2 months;you can return for refund or replacement.If you have any other questions about warranty;please contact us freely;we will work with you win to win.
If my reply still doesn't answer your question well or you want to know more details about this product,could you please contact us by message on Amazon? Because the customer's message can be seen in the first time on Amazon, and will solve the problem as soon as possible. Once I receive your response, I will try my best to answer your questions. Sincerely look forward to your reply.
Best wishes !
Kelly
Question :
How is the mirror attached? Is it removable?
Answer :
Dear customer ,
Thanks for your contact.
You can just snap it directly to the 1.25-inch interface of the telescope. It is removable.
For accessories;we provide 2 months warranty;within 2 months;you can return for refund or replacement.If you have any other questions about warranty;please contact us freely;we will work with you win to win.
If my reply still doesn't answer your question well or you want to know more details about this product,could you please contact us by message on Amazon? Because the customer's message can be seen in the first time on Amazon, and will solve the problem as soon as possible. Once I receive your response, I will try my best to answer your questions. Sincerely look forward to your reply.
Best wishes !
Kelly
Question :
Hello, i own an orion apex mak-cass telescope and i was wondering if this diagonal would be a suitable replacement for this type of scope? thanks!
Answer :
Dear friend,
I hope you are well!
Thanks for your inquiry. Our this product interface size is 1.25 inches. So if you want to use an orion apex mak-cass telescope with it is ok.
If my reply doesn't answer your question well,could you please contact us by message on Amazon? Because the customer's message can be seen in the first time on Amazon, and will solve the problem as soon as possible. Once I receive your response, I will try my best to answer your questions. Sincerely look forward to your reply.
Best wishes !
Kelly
Question :
I have an upside down image using a low eyepiece and when I put this on -- the image is all white.... Does it increase the distance or something?
Answer :
Refractor telescopes produce an image that is upside down when used without a diagonal. When a diagonal is used the image will be corrected right side up, but backwards from left to right. It will look like trying to read a sign in a mirror. There are special diagonals called Erect Image Prism diagonals that can correct the backwards image for land use. A diagonal also allows a refractor telescope to focus properly at distance. For terrestrial viewing there are special diagonals which can be purchased which are called Erect Image Prism diagonals. These will correct the backwards image for land use. Astronomical telescopes are poor choices for terrestrial viewing. (Reflector telescopes produce an upside down & backwards image that cannot be corrected.) The important thing to remember is that in space, there is NO upside down or right side up!
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