PlaneWave CDK400 (17-inch) Telescope System

PlaneWave 17-inch CDK Features: For time frames or questions, please contact us at 800-483-6287. Dual Carbon Fiber Truss Design: Minimizes thermal expansion which causes focus shift with changes in temperature. Carbon Fiber Lower Light Shroud: Protects the primary mirror from damage and from stray light. Fused Silica Optics: Synthetic amorphous silica glass of the highest purity and one of the most transparent glasses available. Superior optical and thermal properties to most other glass in the world. Dovetail expansion joint: Allows for the difference in thermal expansion between carbon fiber and aluminum. The expansion joint allows the aluminum dovetail to expand and contract without stressing the carbon fiber lower truss. Cooling Fans: Three fans blow filtered air onto the back of the primary mirror to help it quickly equilibrate to the ambient temperature. The fans are controlled by a switch on the optical tube or can be controlled by a computer if the optional EFA Kit is purchase