{"id":30397,"date":"2025-10-08T18:33:23","date_gmt":"2025-10-08T16:33:23","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=30397"},"modified":"2026-08-25T15:10:53","modified_gmt":"2026-08-25T13:10:53","slug":"bobs-knobs-adjustment-screws-for-celestron-sct-9-25-f-10-standard","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/bobs-knobs-afstelschroeven-voor-celestron-sct-9-25-f-10-standard\/","title":{"rendered":"Bob's Knobs Adjusting Screws for Celestron SCT 9.25\u2033 f\/10 Standard"},"content":{"rendered":"

Bob's Knobs for Celestron SCT 9.25 inch f\/10 Standard: Collimating your Schmidt-Cassegrain without tools<\/strong><\/h2>\n\n\n\n

This set replaces the small collimation screws on the secondary mirror of the Celestron SCT 9.25 inch f\/10 Standard. On a Schmidt-Cassegrain, the secondary mirror is located in the center of the corrector plate: a screwdriver that slips will directly hit the glass. With thumbscrews, you can collimate by feel, safely, and with extreme precision.<\/p>\n\n\n\n

Bob's Knobs replaces the original screws with stainless steel thumb screws with knurled grips. This allows you to collimate entirely by hand: no screwdriver over the optics, no rolling away Allen keys in the dark, and full control even with gloves on.<\/p>\n\n\n\n

\"Bob's<\/figure>\n\n\n\n

Features<\/h3>\n\n\n\n