Home · Diagonals · 2" Enhanced Aluminum Mirror Diagonals 2" Enhanced Aluminum Mirror Diagonal for Refractors The enhanced aluminum mirror coatings of this 2” Astro-Tech first-surface mirror diagonal provide reflectivity and performance comparable to diagonals more than twice its sensible price. Its optical performance, quality machining, 2” non-marring compression ring eyepiece holder, and standard equipment 1.25” compression ring eyepiece adapter make it unique among 2” star diagonals for its exceptional price/performance ratio. 2" Enhanced Aluminum Mirror Diagonal for SCTs This 2” Astro-Tech first-surface mirror diagonal for Schmidt-Cassegrains has enhanced aluminum mirror coatings for reflectivity and performance comparable to diagonals more than twice its sensible price. It threads directly onto a catadioptric’s rear cell and will clear the drive base of virtually any SCT scope. A 2” non-marring compression ring eyepiece holder and 1.25” compression ring eyepiece adapter are standard equipment.
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