Orion's highest-quality mirror diagonals feature sophisticated, lab-tested dielectric coatings that boast an astounding 99% reflectivity. Dielectric coatings are more durable than enhanced aluminum coatings, so you'll enjoy years of exceptional performance. The machined and anodized aluminum housing features machine-threaded baffles for high contrast and a nonmarring compression ring collar for securing the eyepiece. Nosepiece barrel is threaded to accept filters. Endcaps included.

Please note this product was not designed or intended by the manufacturer for use by a child 12 years of age or younger.

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