The SecureFit spacers are attached via four screws to the PlaneWave Hedrick focuser. When using a PlaneWave SecureFit CCD Adapter, the CCD camera is also attached via screws so there will be no slipping, movement or falling equipment.

For the CDK12.5 there are three lengths available, 4.8″, 3.5″ and 2.5″. The backfocus of the CDK12.5 is 7.2″ from the fully racked in Hedrick Focuser.