The .8X Focal Reducer for the NP101/127 and the new NP101is/127is telescopes by Tele Vue:
The reducer threads directly to the NP101is and NP127is 2.4-inch focusers and can be used for imaging up to 30 mm diagonal formats.
If you have a NP101 or NP127, you can attach this reducer to your 2-inch focuser with the optional Tele Vue TE-RAD-1074 adapter (see Accessories tab for more info). Finally, you will need the proper Tele Vue adapter to connect to your camera (see accessories tab for a list of choices).
OPT Product Number: TE-NPR-1073