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OAG Off Axis Guider Adapter for Moravian Instruments G4 Cameras

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1.20 kg
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Off-axis Guider (OAG) adapters are designed to allow attachment of any guiding camera with 1.25" eyepiece nosepiece, although the nosepiece must be somewhat short to achieve focus.

Off-axis guider adapters for G3 and G4 cameras are equipped with M68 × 1 thread on the telescope side at the distance of 61.5 mm from the detector. The two variants (for G3 cameras and for G4 cameras) differ in the mounting holes' placement and also in the distance of the reflecting mirror from the optical axis.

Connection of the guide camera is via a 1.25" nosepiece. It also comes with an adapter with a male C-mount thread to connect to cameras with that type of thread or we also supply a C-mount to T-thread adapter, then a camera with female T-thread can be connected, too.

Model Supported cameras Filter wheels Back focal distance Front thread Guider camera port
OAG-3-M68 G3 Internal, EFW-3S 61.5 mm M68 × 1 1.25 "
OAG-4-M68 G4 EFW-4M, EFW-4L 61.5 mm M68 × 1 1.25 "


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