TS-Optics knurled screws for collimating Celestron SC and EHD telescopes

TS-Optics collimation screws for Celestron SC and EHD telescopes

An SC or EHD telescope must always be perfectly collimated to produce the best possible image. A regular check of the collimation on the star is necessary. However, not everyone likes to play with an Allen key in front of the sensitive Schmidt plate in the dark. TS-Optics knurled screws offer a remedy.

The thumbscrews feature a generous knurled top for very precise adjustment without tools. A big advantage compared to Bob's Knobs screws, for example, are the different surfaces, which allow you to distinguish the screws even in the dark and thus always turn the correct screw. Each of the screws have a rubberized and rounded surface, one with a CNC etched notch and one with a flat head.

The collimation screws fit all Celestron EHD and SC telescopes from 5" to 14" aperture. The appropriate spacers are included and the instructions indicate which washers are required for which telescope.

♦ C5: 2 spacers per screw

♦ C6: no spacer

♦ C8 without Fastar: 2 spacers per screw

♦ C8 with Fastar: 1 spacer per screw

♦ C8 Edge HD with/without Fastar: no spacer

♦ C9.25 without Fastar: 1 spacer per screw

♦ EHD925 without Fastar: 1 spacer per screw

♦ C11 without Fastar: without spacer

♦ EHD1100 without Fastar: without spacer

♦ Currently there is no support for EHD925, C9.25, EHD1100, C11 with Fastar.