









🔭 Elevate Your Stargazing Game with Precision and Comfort!
The SVBONY SV188P Dielectric Mirror Star Diagonal is a premium 2-inch telescope accessory featuring a 99% reflective dielectric coating for maximum brightness and clarity. Crafted from durable aluminum alloy with brass compression rings, it ensures secure eyepiece attachment without damage. Its 90-degree angle provides comfortable, upright viewing, while the matte interior treatment minimizes stray light for enhanced image quality. Compatible with both 2-inch and 1.25-inch eyepieces, this diagonal is a top-rated upgrade for serious amateur astronomers.

















| ASIN | B0DLL5W5Y3 |
| Best Sellers Rank | #1 in Telescope Diagonals |
| Customer Reviews | 4.8 4.8 out of 5 stars (299) |
| Date First Available | October 31, 2024 |
| Item Weight | 1.43 pounds |
| Item model number | FF9171D |
| Manufacturer | SVBONY |
| Product Dimensions | 4.4 x 2.4 x 3.3 inches |
R**D
Well Made Diagonal
This diagonal was a great upgrade compared to the diagonal that came with the telescope. The build quality is impressive. The price is incredible for the quality Much clearer image. Lots more light in the eyepiece Would buy again or recommend. So far the Svbony products I have purchased have all been top notch
B**N
2" angle. Very good quality at ridiculously low price.
Exactly as advertised. Super fast shipping with Prime.
K**A
Good value
Solid build, bright and sharp views.
S**R
Eyes on the Skies
Great diagonal at a very good price. Highly recommend.
A**H
Good clarity
My first telescope only came with a 45 degree diagonal, this one is a nice upgrade. It seems solid and well made. The clarity and color are better than in the one that I had. Fit is nice and snug. The only complaint I have is really my own fault for not understanding the specs. This unit corrects the top/ bottom view, but not the left/right. Being a novice, this makes it a little more difficult for me to use. The price is very reasonable for what you get, but ultimately I will be looking to replace it at sometime because of the the left/right mirrored view.
J**N
Happy Customer
Very impressed. The view of the moon is crystal clear using this diagonal. I had wondered if the lenses in my old telescope were dirty but it was just the old diagonal. I used this and another piece to convert an old C8 to use 2” eye pieces.
C**N
Works great!
Works great.. Had no problems with shipping and item arrived on time.
R**Y
Good product, no complaints
The SV188P seems perfectly good. As Svbony are Hong Kong–based, I’m comfortable the mirror is as described rather than the usual made-up marketing numbers. I contacted their support on a different matter and found them responsive and helpful. I don’t think the interior not being perfectly matte black is an issue, since there’s little to scatter, but it’s easily resolved anyway.
D**N
I didn't expect a 55$ diagonal to blow me away, but here we are. I recently purchased a Skywatcher 102mm StarTravel, the included 45 degree diagonal is perfectly usable for terrestrial, but for sky observing with objects high, it's much more of a problem. I was recommended this diagonal from a friend, and I was blown away with the difference in brightness and clarity of viewing. I have purchased a few SVbony products and they never fail to impress. This diagonal is no different. The mirror is huge compared to cheaper diagonals, and the dialectic coatings make it much brighter. If you need a diagonal buy this one with confidence. It comes with a brass band and not just a screw, so your eyepieces shouldn't get scratched up. Getting used to left and right being backwards, takes some getting used to, but it's definitely not a deal breaker. An unexpected side benefit, is the mirror is very easy to clean. (with a microfiber cloth) That was a problem with the default one that came with the scope.
J**O
Excelente calidad en los materiales y un estupendo acabado.
R**Y
This product gives full value for the money.It is a part of the telescope which can really make a difference,especially if the one being replaced is stock ,which came with the telescope.
N**R
Good product...it will increase brightness which is important in deep sky but it is not usful in daytime because it will show reverse image....
J**.
La diagonal esta a la par en calidad y funcionalidad de las grandes marcas del mercado, pero a un menor precio y sin perder gran detalle visual, producto excelente, ya arreglaron el problema que tenia de venir tintada de rojo en el interior
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