The Starfield 2" 0.8x adjustable reducer and flattener makes finding the correct back focus easy! Fighting with adapters is a thing of the past!
The reducer attaches directly to the Starfield telescopes focuser by removing the Axil lock. It can also be used when paired with a 2" adapter. Using the supplied 1.5mm Allen key, loosen off the three screws a half turn and then unscrew the lock.
Thread the reducer onto the focuser.
This Reducer can also be used for other Telescopes that are 70-102mm in aperture.
- 102 mm / focal ratio f/7 - 55 mm
- 90mm / focal ratio f/6 - 58 mm
- 80 mm / focal ratio f/7 - 57.6 mm
- 80 mm / focal ratio f/6 - 59.6 mm
- 70 mm / focal ratio f/6 - 61.6 mm
How to set your distance.
Starfield 80mm f/6 with 480 focal length
DSLR with 55mm backfocus when using a T-Ring
The reducers distance for 80mm f/6 is 59.6mm. 59.6mm - 55mm (DSLR and T-Ring) is 4.6mm. Simply adjust the reducer to the 4.6mm mark an you are now ready to take pictures. Fine tuning can be done if needed.
Filters can be added inside the reducer.