Electronic Focus Accessory (EFA) Kit

$920.00 – $1,150.00

The EFA kit automates focusing on the optional Hedrick Focuser, or IRF90 rotating focuser.
Monitors temperature (primary-mirror and OTA back-plate).
Controls the fans built-in to CDK telescopes.
Ensure you have the proper EFA kit selected for your telescope below.
- 125901-Kit is for CDK12.5 OTAs.
- 240901-Kit is for CDK14, CDK17, CDK20, and CDK24 OTAs.

Model

Clear

Recommended Products

Image	Name	Summary	Price	BuySelect all
	IRF90 – Integrated Rotating Focuser	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 hard stops to eliminate any chance of cord wrap. IRF90 is controlled via PWI4 software for autofocusing and optional field de-rotation (if using an Alt/Az mounted system).	$5,200.00	IRF90 – Integrated Rotating Focuser quantity
	Hedrick Focuser	The Hedrick focuser designed by PlaneWave is a heavy duty no-slip focuser capable of handling an imaging payload of up to 20lbs. Occupies 3″ of backfocus with the focuser fully racked in, and 4.2″ when fully racked out. Focuser travel range of 30mm (30000 microns/1.2″) The focus tube runs on 5 bearings and is driven by a leadscrew so there is no chance of slipping. Focus may be automated through a computer using PlaneWave’s EFA Kit and PWI3 software. The focuser comes with pre-installed motor that can be controlled with the EFA hand controller or PWI3 software.	$1,150.00	Hedrick Focuser quantity