ZWO Off-Axis-Guider

ZWO Off-Axis-Guider enables both astrophotography and guiding with a single telescope. Perfect for astrophotographers who want to combine sharpness and precision without an extra telescope. Thanks to its large prism (8×8 mm), it easily detects bright stars in the peripheral field, even at shorter focal lengths.

The optical design is extremely compact: with an effective length of just 16.5 mm, it fits perfectly in tight imaging trains, such as when using a filter wheel and cooled camera. The guider comes with a set of adapters (M48, T2, 1.25″) allowing you to easily connect virtually any combination — from DSLR to ZWO ASI camera.

✓ Only 16.5 mm thick – fits in almost any optical path
✓ Large prism (8×8 mm) – ideal for guide stars at the edge
✓ Universal connection – M48, T2 and 1.25″ adapters included
✓ No separate guide scope needed – less weight and errors
✓ Perfect for compact deep-sky setups and precision tracking

Application

This off-axis guider is particularly suitable for astrophotographers working with:

• Cooled ZWO cameras or DSLRs
• Narrow imaging trains with limited back focus
• Newtonians, APOs or Cassegrain telescopes with M48/T2 output
• EQ mounts with autoguide port and compatible camera

Specifications

• Optical length: 16.5 mm
• Prism size: 8 x 8 mm
• Telescope side connection: M48x0.75 (T2 adapter included)
• Camera side connection: M48x0.75 (T2 adapter included)
• Autoguider connection: T2 or 1.25″ (both included)