{"id":34178,"date":"2025-11-17T14:06:50","date_gmt":"2025-11-17T13:06:50","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=34178"},"modified":"2026-08-25T15:11:44","modified_gmt":"2026-08-25T13:11:44","slug":"william-optics-3-5-rotator-rotolock-visual-back","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/william-optics-3-5-rotator-rotolock-visual-back\/","title":{"rendered":"William Optics 3.5 Rotator Rotolock Visual Back"},"content":{"rendered":"

William Optics 3.5 Rotator Rotolock Visual Back: 2-inch parking position on the large FluoroStar<\/strong><\/h2>\n\n\n\n

The William Optics 3.5-inch Rotolock visual back threads onto the 3.5-inch focuser of the large FluoroStar refractors and provides a generous 2-inch opening with a Rotolock clamping system on the eyepiece side. A quick twist of the locking ring and your eyepiece or star diagonal is clamped evenly all around: tilt-free, centered, and scratch-free.<\/p>\n\n\n\n

The Rotolock principle works like a twist-lock: no loose clamping screws, changing is done with a single movement of the hand, even with heavy 2-inch eyepieces and with gloves on. This version is one of the three color schemes in which William Optics supplies this visual back.<\/p>\n\n\n\n

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For the large FLT refractors<\/h4>\n\n\n\n

Made for the 3.5-inch focusers and extension tubes of the William Optics FluoroStar line. This is how you use your complete 2-inch eyepiece and diagonal park on the largest WO tubes, without play in the chain.<\/p>\n\n\n\n

Featured accessories<\/h3>\n\n\n\n

Combine the visual back with the Dura Bright 2-inch diagonal for comfortable visual observation on your FLT.<\/p>\n\n\n\n

For whom yes and for whom no<\/h3>\n\n\n\n