When you need a secure way to attach a CCD camera at the image plane of a CDK telescope, the Secure Fit Spacers get you the optimal back focus spacing. These spacers attach via four screws to the PlaneWave Hedrick and IRF90 Focusers. When coupled with a PlaneWave SecureFit CCD Adapter, they practically eliminate slippage, movement, and equipment drops. The spacers come in eight different lengths: 2.1, 3.8, 4.5, 5.2, 5.9, 6.75, 7.5, and 8.25.

These spacers are made for the CDK14, 17, 20, and 24 and do not work with the CDK12.5. The CDK12.5 Secure Fit Spacers have a different bore size.