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10 Best diagonal mirror 90 degrees of 2026
Save up to 20% off
Best Choice1
SVBONYSVBONY SV223 90 Degree Diagonal Mirror, 99% Reflective Dielectric Coating Erect Image Star Diagonal 2 Inches with 1.25 Inch Adapter, Diagonal Adapter for Astronomical Telescope
9.7Exceptional
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Value for Money2
SVBONYSVBONY SV188P Dielectric Mirror Star Diagonal, 90 Degree Mirror Diagonal, 99% Reflectivity Dielectric Coatings with Brass Compression Rings (2 inch)
9.6Exceptional
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3
SVBONYSVBONY SV188P Dielectric Mirror Star Diagonal, 90 Degree Mirror Diagonal, 99% Reflectivity Dielectric Coatings with Brass Compression Rings (1.25 inch)
9.4Excellent
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4
SVBONYSVBONY SV221 90 Degree Diagonal Mirror, Telescope Diagonal 1.25 inches with Brass Compression Rings, Telescope Accessory for Refractor Telescope
9.1Excellent
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5
A ALSTARAlstar Diagonal Mirror 90 Degree, Telescope Diagonal 1.25 inches with Fixing Eyepiece Thumbscrew, Telescope Accessories for Refracting Telescope Eyepiece Lense for Astronomical Visual Observation
14% Off8.8Very Good
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SVBONYSVBONY 1.25 inches 90 Degree Dielectric Mirror Diagonal Fully Metal for Refracting Telescope Eyepiece Lens for Astronomical Visual Astrophotography
10% Off8.7Very Good
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7
AstromaniaAstromania 1.25 Inch Telescope Diagonal with Amici Erecting Prism - 90° Fully-Coated Star Diagonal for Upright & Clear Astronomical Viewing, Metal/Plastic Construction, Enhanced Optical Transparency
20% OffKey specs-
Optical Coating:BK7 glass
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Filter Thread:1.25 inch filter
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Image Orientation:Upright, right angled
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Viewing Angle:90 degree
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Material:ABS plastic, metal
8.6Very Good
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8
AstromaniaAstromania 1.25" 90-Degree Diagonal Mirror - More Comfortable Viewing Orientation as You Observe from Above, Filter Thread for Any 1.25" Filter and Accepts Standard 1.25" eyepieces
8.5Good
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9
Heayzoki1.25 Inches 90 Degree Diagonal Mirror for Refractor Telescopes, Erecting Prism Optical Prism Inside, for Astronomical Visual Astrophotography
8.4Good
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10
Dlh western90-Degree Mirror 1.25-Inch Dielectric Diagonal Mirror 99% Reflectivity and Brass Rings
8.3Good
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