Bob's Knobs Adjusting Screws for Celestron SCT 9.25″ f/10 Standard

Bob's Knobs for Celestron SCT 9.25 inch f/10 Standard: Collimating your Schmidt-Cassegrain without tools

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.

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.

Features

• Three stainless steel thumb screws with knurled grip
• Aligning without tools, even in the dark or with gloves
• No risk of slipping with a screwdriver over the optics
• Corrosion resistant and mountable without permanent modification

Compatibility

Suitable for the Celestron SCT 9.25 inch f/10 with standard (imperial) thread. Check the year of manufacture and thread type of your telescope: Celestron has used both standard and metric threads over the years.

Specifications

You can find more accessories for this merk at the Bob’s Knobs merk Page.