{"id":34220,"date":"2025-11-17T15:31:23","date_gmt":"2025-11-17T14:31:23","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=34220"},"modified":"2026-08-25T15:11:44","modified_gmt":"2026-08-25T13:11:44","slug":"william-optics-90-2-diagonal-mirror-dura-bright","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/william-optics-90-2-diagonaal-spiegel-dura-bright\/","title":{"rendered":"William Optics 90\u00b0 2\u2033 Diagonal Mirror Dura Bright"},"content":{"rendered":"

William Optics 90\u00b0 2″ Diagonaal Spiegel Dura Bright: de topdiagonaal voor je 2 inch park<\/strong><\/h2>\n\n\n\n

The William Optics Dura Bright 2-inch diagonal is the accessory that will improve the performance of your entire eyepiece set. The dielectric coating reflects 99.1% of the light, and the mirror is polished to 1\/12 lambda: maximum brightness and a sharp, clear image even at high magnification.<\/p>\n\n\n\n

The 12 mm thick mirror remains dimensionally stable during temperature changes. The housing combines aluminum with carbon: rigid, lightweight, and beautifully finished.<\/p>\n\n\n\n

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For your entire accessory fleet<\/h4>\n\n\n\n

The 2-inch compression ring clamps large eyepieces scratch-free and evenly all around; the included 1.25-inch adapter accommodates your smaller eyepieces. A filter thread places 2-inch filters directly in the light path.<\/p>\n<\/div>\n<\/div>\n\n\n\n

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Also on SC telescopes<\/h4>\n\n\n\n

With the separately available William Optics SC adapter, this diagonal screws directly onto the rear thread of a Schmidt-Cassegrain: more rigid than any clamp connection.<\/p>\n<\/div>\n<\/div>\n\n\n\n

Included<\/h3>\n\n\n\n