Independent buying guides for backyard astronomy

SVBONY SV223 90 Degree Diagonal Mirror 99% Reflective Dielectric Star Diagonal 2 inch with 1.25 Adapter

SVBONY SV223 90 Degree Diagonal Mirror 99% Reflective Dielectric Star Diagonal 2 inch with 1.25 Adapter

SVBONY SV223 90 degree 2 inch dielectric star diagonal, 99% reflective, with 1.25 adapter.

Price range: See on Amazon

What we liked

  • + 99% reflective dielectric coating delivers bright views
  • + 1.25 adapter provides compatibility with smaller eyepieces
  • + Affordable 2 inch upgrade for refractors and SCTs

Trade-offs

  • - Build finish may not match Celestron or Orion diagonals
  • - Larger size adds weight to small telescopes

Prices change often, so check the current price and availability on Amazon.

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