3.5″ Hedrick Focuser to 2.7″ Male AP Threads

• The IRF90 is a large capacity Integrated Focuser and Rotator for use with Alt/Az, or equatorially mounted systems.
• Occupies 3.5″ of backfocus with the focuser fully racked in, and 4.7″ when fully racked out.
• The Focuser is capable of lifting 40 lbs (18 kg) with a range of 30mm (30000 microns/1.2″).
• The Rotator has a 90mm aperture with a range of 365 degrees with hardstops to eliminate any chance of cord wrap.
• IRF90 is controlled via PWI3 software for autofocusing and optional field de-rotation (if using an Alt/Az mounted system).

>This Visual Adapter for the CDK 17 allows you to attach standard 2″ visual accessories to the Hedrick Focuser.

• The adapter steps the 3″ opening down to 2″ for standard 2″ accessories.
• The adapter also adds some additional spacing to optimize the use of a 2″ diagonal so focus is reached with most eyepieces.

The back plate on all of the CDK models has four mounting positions for a finder mounting plate.

• The finder mounting plate attaches to the back plate of the telescope and the quick-release finder bracket attaches to the mounting plate.
• If the telescope is used on a German Equatorial mount it may be convenient to purchase two finder scopes, one for the east and one for the west side of the telescope.
• The finder scope is a Baader 10×60 Varios with mounting rings and L- bracket.