2" Diagonal w/1.25 Adapter
$199.99
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2" Diagonal w/1.25 Adapter
$199.99
99% Reflectivity
Maximum Light Transmission Performance
Dielectric Coated
Durable Premium Optical Surface
Dual Fitment
Includes 1.25 Inch Adapter
Crystal Clear OpticsUncompromising Quality for Stargazing Enthusiasts
The Explore Scientific 99% Reflective 2" Diagonal is designed to elevate your stargazing experience by delivering maximum light throughput directly to your eyepiece. Featuring a precision first-surface dielectric mirror coating, this optical accessory reflects 99% of incoming light for exceptionally bright, high-contrast astronomical views through your telescope.
Precision Optical PerformanceEngineered Security and Superior Imaging
Upgrade your astronomy gear with the high-performance Explore Scientific 99% Reflective 2" Diagonal. Built with a lightweight yet solid chassis, this mirror diagonal features an innovative double-tapered insertion barrel that smoothly enters focusers while preventing accidental drops if safety set screws loosen. Both the main 2-inch optical holder and included 1.25-inch step-down adapter feature non-marring brass compression ring locks to hold your valuable eyepieces firmly without marring their finish. Whether observing deep-sky nebulae or fine planetary detail, the Explore Scientific 99% Reflective 2" Diagonal delivers uncompromising visual clarity and rugged reliability.
Technical SpecificationsDetailed Dimensions and Build Specs
Item Number
DD02–00CF (hash)
Reflectivity
99% Dielectric Mirror
Barrel Size
2 Inch with 1.25 Inch Adapter
Weight
1.0 lb / 0.45 kg
Length
104.8 mm
Width
60.9 mm
Hight
127.0 mm
Eyepiece Clamping
Brass Compression Rings
Dust Covers
Included Front and Rear
Key FeaturesAdvanced Design for Astronomical Observation
Optical Coating99% First-Surface Dielectric Coating
Safety TaperDouble-Tapered Barrel Anti-Drop Protection
Dual CompatibilityNatively Fits 2 Inch and 1.25 Inch Eyepieces
Eyepiece ProtectionScratch-Free Brass Compression Rings
Solid ConstructionDurable and Lightweight Body Design
Included AccessoriesProtective Dust Covers and Adapter
Frequently Asked QuestionsEverything you need to know
What is the main advantage of using the Explore Scientific 99% Reflective 2" Diagonal?
The Explore Scientific 99% Reflective 2" Diagonal features a premium dielectric coating reflecting 99% of visual light, yielding significantly brighter and higher-contrast telescope images than standard star diagonals.
Can I use both 2-inch and 1.25-inch eyepieces with the Explore Scientific 99% Reflective 2" Diagonal?
Yes, the Explore Scientific 99% Reflective 2" Diagonal natively accepts 2-inch eyepieces and includes a precision 1.25-inch adapter to support smaller eyepieces seamlessly.
How does the Explore Scientific 99% Reflective 2" Diagonal protect my eyepieces from barrel damage?
The Explore Scientific 99% Reflective 2" Diagonal uses internal brass compression rings on both the 2-inch housing and 1.25-inch adapter to clamp your eyepieces firmly without scratching their barrels.