Bob's Knobs springs for Newton

Bob's Knobs Springs for Newton 8″, 10″ and 12″ Primary Mirror are designed to improve the stability of your telescope during collimation. These sturdy stainless steel springs replace the standard, often slacker springs in the primary mirror cell of Newton telescopes.

The higher spring tension means the mirror stays in place better, so collimation is maintained much longer - even with temperature changes or when the telescope is moved. This means less frequent adjustments and more time to actually observe.

The springs are directly compatible with most 8″, 10″ and 12″ Newton telescopes. They can be easily installed without permanent modifications to the telescope. Combined with Bob's Knobs collimation screws, they are the ideal upgrade for more stable, accurate and low-maintenance optics.

Application
Perfect for Newton telescopes where the primary mirror gets out of position quickly or needs frequent recollimation. The stronger spring tension keeps the mirror exactly in place, even during frequent transport or intensive use. Ideal for those who want sharper images without constant readjustment.

Specifications
Material: stainless steel
Number of springs: 3
Type: Collimation springs for primary mirror
Compatibility: Newton telescopes with 8″, 10″ or 12″ mirror
Feature: High spring tension for stable collimation