Orion Focal Reducer

This reducer is designed for use with refractor telescopes that have a 2-inch focuser. Because it requires a specific backfocus of 55mm to function correctly, you should confirm your camera setup can accommodate that distance before purchasing.

The 0.8x factor shortens your telescope's effective focal length, which results in a faster focal ratio. This allows your camera sensor to capture more light in less time, effectively widening your field of view so you can fit larger deep-space objects into a single frame.

Yes, this accessory acts as a field flattener in addition to reducing focal length. It corrects the curvature often found in refractor optics, ensuring that stars remain sharp and pinpoint-accurate from the center of your image all the way to the corners.

Yes, the unit is threaded to accept standard 2-inch imaging filters. This allows you to easily incorporate light pollution or narrowband filters into your imaging train without needing extra adapters.

The kit includes both M42 and M48 interchangeable adapters. These are the two most common thread sizes for dedicated astronomy cameras and DSLR T-rings, ensuring broad compatibility with most imaging setups.