PlaneWave IRF90 - Integrated Rotating Focuser

Starting Price: $5,980.00
Price as Configured: $5,980.00
Brand: PlaneWave Instruments / SKU: PW-600180
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).
  • Requires the EFA Kit sold separately


Recommended Add-ons and Accessories
Product Price Quantity
PW-125901-KIT - PlaneWave Electronic Focus Accessory (EFA) Kit for CDK12.5
PW-125901-KIT - PlaneWave Electronic Focus Accessory (EFA) Kit for CDK12.5
About This Product
The EFA control box can be mounted to the back plate of any PlaneWave telescope OTA (CDK12.5 through 24 inches). The EFA Kit plugs into the temperature sensors and fan control systems that are built into each telescope. A hand controller is provided to control an optional focuser or rotator when standing at the eyepiece.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 into CDK telescopes.
Ensure you have the proper EFA kit selected for your telescope below.
125901-Kit is for all 12.5″ OTAs (CDK/ IRDK).
240901-Kit is for all 14-24″ OTAs (CDK/ IRDK/ RC) and CDK700s

Hand Controller is not included

*If the EFA is not purchased, the ability to automate temperature regulation for the primary mirror will be lost. This is especially significant when using a third-party focuser, as the EFA is required for full automation.
$920.00 each
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Recommended Add-ons and Accessories

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PW-125901-KIT - PlaneWave Electronic Focus Accessory (EFA) Kit for CDK12.5
PW-125901-KIT - PlaneWave Electronic Focus Accessory (EFA) Kit for CDK12.5
$920.00
« Back to All Add-ons
PW-125901-KIT - PlaneWave Electronic Focus Accessory (EFA) Kit for CDK12.5
About This Product
The EFA control box can be mounted to the back plate of any PlaneWave telescope OTA (CDK12.5 through 24 inches). The EFA Kit plugs into the temperature sensors and fan control systems that are built into each telescope. A hand controller is provided to control an optional focuser or rotator when standing at the eyepiece.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 into CDK telescopes.
Ensure you have the proper EFA kit selected for your telescope below.
125901-Kit is for all 12.5″ OTAs (CDK/ IRDK).
240901-Kit is for all 14-24″ OTAs (CDK/ IRDK/ RC) and CDK700s

Hand Controller is not included

*If the EFA is not purchased, the ability to automate temperature regulation for the primary mirror will be lost. This is especially significant when using a third-party focuser, as the EFA is required for full automation.
PW-125395 - PlaneWave Adapter, CDK12.5 to IRF90 Rotating-Focuser
PW-125395 - PlaneWave Adapter, CDK12.5 to IRF90 Rotating-Focuser
$229.00
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PW-125395 - PlaneWave Adapter, CDK12.5 to IRF90 Rotating-Focuser
About This Product
This adapter provides 0.48 inches of length between the CDK12.5 telescope and the IRF90 Rotating Focuser, and is also required for use with the IRF90.

PW-240343-1 - PlaneWave Spacer, CDK24 to IRF90 or Hedrick Focuser (L=5.539")
PW-240343-1 - PlaneWave Spacer, CDK24 to IRF90 or Hedrick Focuser (L=5.539")
$460.00
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PW-240343-1 - PlaneWave Spacer, CDK24 to IRF90 or Hedrick Focuser (L=5.539")
About This Product
This spacer goes between the telescope and the focuser.
(NORMALLY INCLUDED WITH CDK24, SETS CDK24 BACK-FOCUS EQUAL TO THE CDK20 [8.81-INCHES]) L=5.539″
PW-240343-2 - PlaneWave Spacer, CDK24 to IRF90 or Hedrick Focuser (L=4.109")
PW-240343-2 - PlaneWave Spacer, CDK24 to IRF90 or Hedrick Focuser (L=4.109")
$460.00
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PW-240343-2 - PlaneWave Spacer, CDK24 to IRF90 or Hedrick Focuser (L=4.109")
About This Product
This spacer goes between the telescope and the focuser.
(SETS CDK24 BACK-FOCUS EQUAL TO THE CDK17 [10.24-INCHES]) L=4.109″

PW-240343-3 - PlaneWave Spacer, CDK24 to IRF90 or Hedrick Focuser (L=3.259")
PW-240343-3 - PlaneWave Spacer, CDK24 to IRF90 or Hedrick Focuser (L=3.259")
$460.00
« Back to All Add-ons
PW-240343-3 - PlaneWave Spacer, CDK24 to IRF90 or Hedrick Focuser (L=3.259")
About This Product
This spacer goes between the telescope and the focuser.
(SETS CDK24 BACK-FOCUS EQUAL TO THE CDK14 [11.09-INCHES]) L=3.259″

PW-600166 - PlaneWave Reducer, Lens .66x for IRF90 & CDK20/24
PW-600166 - PlaneWave Reducer, Lens .66x for IRF90 & CDK20/24
$1,600.00
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PW-600166 - PlaneWave Reducer, Lens .66x for IRF90 & CDK20/24
About This Product
The PlaneWave 0.66x Reducer is engineered specifically for flat-field telescopes like the CDK20 or CDK24, optimizing focal length for enhanced imaging capabilities. This model, designed for use with the IRF90 rotating focuser, features a low-profile build to accommodate cameras that require extra back focus. While the reducer itself has minimal back focus, it does utilize a substantial portion of the telescope’s overall back focus, so precise spacing is essential. When paired with a compatible camera, this reducer decreases the CDK’s focal ratio while maintaining top-tier optical performance.
PW-6003016A - PlaneWave Adapter, IRF90 to Baader IMP85
PW-6003016A - PlaneWave Adapter, IRF90 to Baader IMP85
$288.00
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PW-6003016A - PlaneWave Adapter, IRF90 to Baader IMP85
About This Product
This adapter connects the IRF90 to the Baader IMP85 with a length of 0.6″.

PW-600347 - PlaneWave IRF90 Low Profile to Starlight-Xpress SX-AO
PW-600347 - PlaneWave IRF90 Low Profile to Starlight-Xpress SX-AO
$184.00
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PW-600347 - PlaneWave IRF90 Low Profile to Starlight-Xpress SX-AO
About This Product
This IRF90 adapter is designed for seamless integration with the Starlight-Xpress SX-AO unit. This low-profile adapter boasts a length of only 0.125 inches, excluding its 0.25-inch long male thread, ensuring a compact and efficient connection for your astrophotography needs.
PW-600352 - PlaneWave IRF90 Visual Adapter 2"
PW-600352 - PlaneWave IRF90 Visual Adapter 2"
$161.00
« Back to All Add-ons
PW-600352 - PlaneWave IRF90 Visual Adapter 2"
About This Product
The IRF90 to 2″ Visual Accessory Adapter allows you to attach a 2″ mirror diagonal and eyepiece to your IRF90 rotating focuser. Used in conjunction with other PlaneWave adapters to space your eyepiece at the optimal position for your CDK model.
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Price as Configured: $5,980.00

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