Deep Sky Dad AF3 Autofocuser Kit for William Optics Red/Space Cat
 Deep Sky Dad AF3 Autofocuser Kit for William Optics Red/Space CatDeep Sky Dad AF3 Autofocuser Kit for William Optics Red/Space Cat 

Deep Sky Dad AF3 Autofocuser Kit for William Optics Red/Space Cat

£235.00✓ 2 year warranty


3x in stock shipped 1-2 working days

About this product

Model:  deepskydad_af3_redcat
Part Number:  AF3WOREDCAT

Introducing the Deep Sky Dad AF3 Auto Focuser kit for the William Optics Red/Space Cat

The brand new William Optics RedCat telescope is an alternative to the widefield lens shooting with 250mm of focal length. With the helical focuser, focusing can be quite time consuming process even with the Bahtinov mask (especially with narrowband filters). Our auto focuser will save you time and frustration by providing pinpoint stars on your beautiful photos of the cosmos.

With the extension block (3D printed or aluminium), DAD raised the telescope just high enough to snugly fit the motor between the telescope and the dovetail. This results in a balanced, compact solution, leaving room available for other accessories, like the William Optics guide scope plate that comes with the SpaceCat. The DAD kit is compatible with 110 and 210 dovetails that ship with the cat telescopes.

The AF3 boasts a stealth drive feature to minimise noise and vibration. In addition to the smoother motion it also provides more accurate movement with micro stepping down to 1/256. The enclosure was also optimised for easier assembly but has retained backwards compatibility with existing Astro Dad adapters.

The AF3 is ASCOM/INDI compatible.


  • ASCOM/INDI Supported
  • INDIGO Supported
  • The SKy X Pro X2 Focuser Plugin
  • Custom Step Size
  • Speed/Current Control
  • Optional Hand Controller
  • Optional Temperature Probe
  • Settle Buffer Option
  • Compact Design (44.5mmx48.5mmx50.2mm)
  • Weight 170grams

Software Downloads

Power adapter: 12V - 14V MAX (1A min) with 5.5mm x 2.1mm plug (not included)

Connectivity (not included): Mini USB cable OR Micro USB cable (2020)



What's in the box

  • 1x AF3s unit
  • 1x 3D printed 16T MXL pulley
  • 1x 3D printed helical focuser MXL ring
  • 1x 3D printed mounting plate (compatible with both 110 and 210 dovetails)
  • 1x NEMA 14 L bracket
  • 1x MXL timing belt
  • 2x 10mm M3 bolt (for ring)
  • 8x 6mm M3 bolt (for L bracket)
  • 2x 16mm M6 bolt (for mounting plate)
  • 2x 50mm M6 bolt (for extension block)
  • 1x 3D printed extension block

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