SVBONY SV188P 1.25" Zenith Mirror for Astronomical Telescope, 99% Reflectivity, Full Metal
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Specifications
- Brand Name
- svbony
- Magnification
- -
- Objective Lens Diameter
- 1.25 inch
- Eyepiece diameter
- 1.25 inch
- Field of View
- 90 Degree
- Type
- Zenith Mirror
- High-concerned chemical
- None
- Water Resistance Level
- IPX4
- Origin
- Mainland China
- Model Number
- SV188P
- Material
- Metal, Aluminum Alloy
- Model
- SV188P
- Size
- 1.25-in
- Coatings
- Dielectric
- Reflectivity
- 99%
- Thread
- 28.5*0.6
- M4 Set Screws
- M4 Set Screws
- Net Weight
- 125g / 4.41oz
- Optical path length
- 54mm
- Fit
- 90 degree diagonaal telescope
Product Description
SVBONY SV188P 1.25-Inch 90 Degree Dielectric Mirror Diagonal 99% Reflectivity Dielectric Coatings w/ Brass Compression Rings
Features：
1. SV188P features sophisticated, Multi-layered dielectric coatings that provide an astounding 99% reflectivity for maximum view brightness and sharpness.
2. Dielectric mirror coatings are more durable and more reflective than enhanced aluminum coatings
3. Brass lockScrew for eyepiece or adapter and brass Compression rings features more precision and prevent barrels or the surface of eyepieces from marring and scratching.
4. 1.25" nosepiece barrel is threaded to accept 1.25-Inch eyepiece and filters
5. Diagonal provides a comfortable 90-degree viewing orientation when observing the night sky through a refractor, Maksutov-Cassegrain (Mak-Cass) or Schmidt-Cassegrain telescope
6. Machined and anodized aluminum housing features machine-threaded baffles for optimized contrast
Specifications:
1. Brand: SVBONY
2. Model: SV188P
3. Size: 1.25-Inch
4. Coatings: Dielectric
5. Reflectivity: 99%
6. Thread: 28.5*0.6
7. Material: Aluminum Alloy
8. M4 Set Screws
9. Net Weight: 125g / 4.41oz
Pros & Cons
Pros
- 99% high reflectivity dielectric coatings for bright, sharp astronomical views
- Full aluminum alloy metal construction for superior durability
- Standard 1.25 inch thread size compatible with most amateur astronomical telescopes
- 90-degree design for comfortable overhead viewing positions
Cons
- Only compatible with 1.25 inch telescope eyepieces, not other size fittings
- Does not include extra installation hardware beyond the listed M4 set screws
- IPX4 water resistance only protects against light splashes, not full immersion
- Higher price point than basic plastic zenith mirrors for amateur astronomy use
Common Questions
What is the reflectivity rating of this zenith mirror?
This SV188P zenith mirror has a 99% reflectivity rating thanks to its multi-layered dielectric coatings.
What size telescopes is this zenith mirror compatible with?
It fits 1.25 inch eyepiece telescopes and acts as a 90-degree diagonal mirror for astronomical viewing.
What material is this zenith mirror constructed from?
The mirror body is made from full aluminum alloy metal for durable, long-term optical use.
What is the net weight of this telescope accessory?
The net weight of the SV188P zenith mirror is 125g (4.41oz) per the product specs.
Where is this SVBONY zenith mirror shipped from?
The product originates from Mainland China as listed in the product specifications.
Product information last updated on March 16, 2026