QHYCCD miniCAM8-OAG — Oversized Prism Off-Axis Guider

The dedicated Off-Axis Guider for QHYCCD’s miniCAM8 features a large 14×10 mm prism to maximize light throughput to your guide camera, enabling higher guiding precision on faint stars. It uses a standard M48 telescope interface for straightforward integration and maintains a 55 mm back-focus optical path for compatibility with popular imaging trains. (Sold separately from the camera.)

• Large 14×10 mm pick-off prism for brighter guide stars
• M48 telescope interface for easy connection
• 55 mm back-focus spacing maintained for typical reducers/flatteners
• Purpose-built to match the QHY miniCAM8 form factor

What this OAG does

An Off-Axis Guider samples a small portion of the telescope’s light cone just outside the main sensor’s field, feeding a guide camera without the flexure typically seen with separate guide scopes. The miniCAM8-OAG’s oversized prism increases the chance of acquiring suitable guide stars, especially at longer focal lengths or narrowband imaging.

Key specifications (miniCAM8-OAG)

Note: Mechanical drawings and 3D files may be provided by the manufacturer. Add links below when available.

• 3D Mechanical Drawing:
• Mechanical Dimensions PDF:

miniCAM8 camera specifications (for reference)

These are the camera specs the OAG pairs with.

Compatibility & notes

• Designed for the miniCAM8 body geometry and 55 mm spacing workflows.
• Guide camera back-focus may require minor spacing adjustment for parfocality.
• Check for sensor vignetting in flats when setting prism depth and rotation.

FAQs