Why should I upgrade my mount's bolts to these Star Knobs?
Upgrading to these Star Knobs provides a major improvement in user-friendliness. They allow for tool-free adjustment of your equipment, provide significantly more grip for secure tightening, and are much easier to handle than small bolts, especially when wearing gloves in cold conditions.
What is the purpose of the center post on these Star Knobs?
The center post is a non-threaded, smooth tip that extends beyond the threads. Its purpose is to press against your equipment, such as a dovetail bar, without marring the surface. This prevents the threads from scratching or gouging the finish, which is a common issue with standard bolts.
How do these Star Knobs improve setup on a German Equatorial Mount?
On a German Equatorial Mount (GEM), these knobs are ideal for replacing the bolts used for securing the telescope's dovetail saddle, adjusting counterweights, or locking down finder scopes. The enhanced grip makes it easier and safer to secure heavy equipment in the dark, reducing the risk of accidents during setup and breakdown.
Can these Star Knobs help secure a guide scope more effectively?
Yes. Many guide scope rings use simple bolts with small heads that are difficult to tighten sufficiently by hand. Replacing them with these Star Knobs allows you to apply more torque comfortably, ensuring your guide scope is rigidly held in place to prevent any flexure that could ruin a long exposure.
How do I determine if these Star Knobs will fit my telescope or mount?
Because thread sizes vary widely between manufacturers (e.g., M6, M8, 1/4"-20), you must verify the thread size and length required for your specific application. The best way to do this is to take one of your existing bolts to a local hardware store and use their thread-checking tools to determine its specifications before purchasing a replacement.
Are these Star Knobs suitable for adjusting polar alignment?
While they can replace some hardware, they are generally best for securing accessories. Polar alignment bolts for altitude and azimuth often require finer control or are a specific design (like a T-handle bolt) integrated into the mount head. These knobs are better suited for saddle plates, counterweight safety screws, and accessory rings.
