Bob's Knobs springs for Newton

Bob's Knobs Collimation Springs for Newtonian: Collimation That Stays Put

These stainless steel springs replace the often too weak original springs in the primary mirror cell of Newtonians with an 8, 10, or 12-inch mirror. Due to the higher spring tension, the primary mirror remains exactly in place, ensuring that collimation is maintained even after transport and temperature fluctuations.

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

Compatible with most Newtonians with an 8, 10, or 12-inch primary mirror. Installation without permanent modification to the telescope. Combined with Bob's Knobs collimation screws, you make the complete mirror cell tool-free.

Specifications

You can find more accessories for this brand at the Bob’s Knobs brand page.