ZWO FF80 APO 0.76× Full Frame Reducer

Optical Design and Reduction Factor

The 0.76× reduction factor reduces the focal ratio of the FF80APO from f/7.5 to f/5.7, enhancing light gathering and shortening exposure times.

Reduces the focal length to 456mm, expanding the field of view for capturing a broader portion of the sky.

Improved Imaging Efficiency

The shortened focal length and faster focal ratio reduce integration time, allowing for quicker captures of deep-sky objects with more detail.

Standard 55mm Back Focus Distance

The 55mm back focus distance ensures compatibility with a variety of astrophotography setups, offering ease of use and flexibility.

Convenient and Simple Connectivity

Designed to attach seamlessly to the FF80APO telescope via its four-segment camera extension tube, making installation straightforward.

The built-in M48x0.75 2-inch filter thread allows easy attachment of filters.

Detailed Setup and Connection Instructions

1. Prepare the FF80APO Telescope Tube and Reducer:
   Ensure you have the FF80APO telescope tube and the 0.76X reducer ready for installation.

2. Remove the Four-Segment Connector:

   
   Unscrew the four-segment connector at the end of the FF80APO telescope tube to make space for the reducer.
3. Attach the Reducer:
   Unscrew the end cap of the 0.76X reducer and attach it to the M68 thread of the four-segment connector.
4. Insert and Secure the Reducer:
   Unscrew the front cap of the reducer, insert it into the focuser inner tube, and tighten to ensure a stable connection.

Note

The ZWO FF80APO 0.76X Full Frame Reducer is ideal for wide-field deep-sky imaging, offering a wider field of view and reduced exposure times.

Recommended Usage: Best suited for medium to large deep-sky objects, enhancing your imaging setup for more efficient and effective astrophotography.