This extension adapter is designed for use with the Orion 2" Crayford-type focuser (#13039). The adapter provides the extra height needed when the focuser is used with Orion 203mm f/4.9 and 254mm f/4.7 reflectors. The adapter is not required on Orion Dobsonians.
- Adapter designed for use with the Orion 2" single speed Crayford focuser to allow focus to be achieved with some reflector telescope optical tubes
- Provides extra height needed when single-speed Crayford focuser is used with Orion 203mm f/4
- Adapter is not required for use of single-speed Crayford focuser on Orion Dobsonian telescopes
- Allows visual use of eyepieces with specialty focuser and some mounted reflector telescope tubes
- Adapter designed for use with the Orion 2" single speed Crayford focuser to allow focus to be achieved with some reflector telescope optical tubes
- Provides extra height needed when single-speed Crayford focuser is used with Orion 203mm f/4
- Adapter is not required for use of single-speed Crayford focuser on Orion Dobsonian telescopes
- Allows visual use of eyepieces with specialty focuser and some mounted reflector telescope tubes
