ZWO OAG-L-68 Off-Axis Guider

The ZWO OAG-L-68 is a large-format off-axis guider designed for high-precision guiding in demanding astrophotography setups. Built from lightweight, precision CNC-machined aluminum alloy, it features an integrated M68 sensor tilt plate and a $12times 12text{ mm}$ prism, providing an exceptional clear aperture for large sensors like the ASI461. With a standard 17.5mm optical thickness and a built-in dual-focuser, the OAG-L-68 allows simultaneous operation of the main camera and an ASI Mini guide camera without a separate guide scope, effectively eliminating differential flexure.

【Key Features & Technical Highlights】

• Large-Format & Medium-Format Ready: Equipped with a built-in M68 Sensor Tilt Plate, tailored for large sensors such as the ASI461 and compatible with the ZWO Square Filter Wheel.

• Large Prism Clear Aperture: Features a $12times 12text{ mm}$ prism delivering an $11.7times 8.3text{ mm}$ effective clear aperture for easier guide star selection.

• Integrated Dual-Focuser: Comes with a built-in dual-focuser mechanism for smooth, precise, and stable guide camera focusing.

• High Structural Rigidity: Features a 17.5mm thickness with secure prism locking screws, offering high mechanical stability at a net weight of just 277g.

• Integrated Guiding System: Eliminates the need for an external guide scope, reducing overall payload weight and increasing tracking accuracy for long exposures.

Specifications