PlaneWave 3.5" Hedrick Focuser to 2" Visual Adapter

Adapts the 3.5" Hedrick Focuser for 2" accessories while adding extra spacing, making the use of 2" diagonals optimal so focus can be achieved with most eyepieces. Customer Note: At the end of 2012, PlaneWave adjusted the configuration of the CDK17 so that the back focus behind the 3.5" Hedrick Focuser increased from 5.81" to 7.24". The added back focus allows for the accommodation of a wider variety of instrumentation. This adapter is for CDK17 models made post-2012. PlaneWave Product Number: 170399