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ZWO 1.25'' Helical Focuser
ZWO 1.25'' Helical Focuser
ZWO 1.25'' Helical Focuser
ZWO 1.25'' Helical Focuser
ZWO 1.25'' Helical Focuser

ZWO 1.25" Helical Focuser

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In stock, Shipped in 1-2 working days
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ZWO offers 2 Year Warranty for all Products bought new


ZWO 1.25″ Helical Focuser for ZWO OAG (Off Axis Guider)

Perfectly fits the ZWO OAG (Off Axis Guider); then it will accept 1.25" format guide cameras such as the ZWO Mini series guide cameras. (ASI120Mini, ASI174Mini, ASI290Mini)

Can also be used for other applications and might be compatible with other accessories as the female T-thread at the bottom allows wide compatibility.

The attached accessory (i.e. camera) stays in position when you turn the focusing.


  • Aerospace aluminium alloy material
  • Precision CNC machined
  • Frosted and anodised housing
  • Anti-skid brass screw
  • Brass compression ring



Specifications: ZWO 1.25" Helical Focuser


  • Inner diameter: 1.25" (31.75mm)
  • Overall movement: 6mm
  • Adjustment accurasy; 0.1mm
  • Top thread: male M42x0.75 (T-thread)
  • Bottom thread: female M42x0.75 (T-thread)
  • Min. height: 48.0mm
  • Mx. height: 54.2mm

What's in the Box

What's in the Box: ZWO 1.25" Helical Focuser

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At The Widescreen Centre, we prioritize prompt order processing and dispatch. We strive to dispatch all orders on the same day or the next working day, depending on the time of your order. We hold extensive stocks to ensure that your items are ready for immediate despatch. Please note that the cut-off time for same-day dispatch is usually 1:30 p.m.

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