Sale! These high-quality, 16 mm black plastic collimation knobs are designed to fit the 11-inch, f/10 Celestron Schmidt Cassegrain- either with metal or carbon fiber tube.So long as the scope in question is equipped with standard thread factory collimation screw
These high-quality, 16 mm black plastic collimation knobs are designed to fit the 11-inch, f/10 Celestron Schmidt Cassegrain- either with metal or carbon fiber tube.
So long as the scope in question is equipped with standard thread factory collimation screws, Bobs Knobs will fit it! (Though if it is not fitted with the factory standard Silver Phillips for the 11-inch f/10 Celestron Schmidt Cassegrain, these knobs won’t fit.) BS-C11EDG
Cost: $25
Free Shipping
We offer free shipping on orders over $30. Please check the free - shipping eligibility at checkout.
Delivery Time:
It usually takes [3-5] business days for standard shipping. Please note that this is an estimated time frame and may be affected by local holidays, and unforeseen circumstances.
![Nikon Nikkor AF-P DX 70-300mm f4.5-6.3 G ED Telephoto Zoom Lens [Mint-]](https://www.pixorda.com/wp-content/uploads/2025/8/1756026459/nikon-nikkor-af-p-dx-70-300mm-f4-5-6-3-g-ed-telephoto-zoom-lens-mint-800x800.webp)
![Vivitar 24mm f2.8 Wide Angle Lens for Olympus OM Mount [EXC]](https://www.pixorda.com/wp-content/uploads/2025/8/1756026459/vivitar-24mm-f2-8-wide-angle-lens-for-olympus-om-mount-exc-800x800.webp)
![Sony E 55-210mm f4.5-6.3 OSS SEL55210 Chrome Lens for E-Mount Cameras [EXC+]](https://www.pixorda.com/wp-content/uploads/2025/8/1756026459/sony-e-55-210mm-f4-5-6-3-oss-sel55210-chrome-lens-for-e-mount-cameras-exc-800x800.webp)
![Pentax SMC 67 6x7 165mm f2.8 Portrait Lens [EXC+]](https://www.pixorda.com/wp-content/uploads/2025/8/1756026459/pentax-smc-67-6x7-165mm-f2-8-portrait-lens-exc-800x800.webp)
Reviews
There are no reviews yet.