Starlight Instruments 2.0" Adapter to Attach Orion 0.85 Focal Reducer

This adapter attaches an Orion 0.85x Focal Reducer/Corrector, by its M56x1 thread, to any 2.0" focuser opening.

A standard nosepiece held by a compression ring or thumbscrews can sag or tilt, especially under the weight of a camera. The reducer threads directly onto this adapter's M56x1 thread, so the two form a single, solid unit. This rigid connection is critical for maintaining optical alignment and achieving sharp stars, particularly with modern, high-resolution sensors.

Yes. It can be used to attach the Orion 0.85 focal reducer to any 2.0" focuser opening.

Yes, it is highly likely to improve your results. Telescopes like the Orion ED80T produce excellent images, but any tilt in the optical train can lead to elongated stars in the corners of your frames. By creating a rigid, threaded connection, this adapter eliminates a major potential source of tilt, helping you get the most out of your telescope's optical system.

It gives the reducer a threaded M56x1 connection instead of a clamped one, which removes one possible source of tilt. Tilt can also come from other places, such as the camera's T-ring or the sensor itself, so the adapter alone cannot guarantee a tilt-free train.