If you are searching for the most precise motorized focuser for Borg 90FL and 107FL f3.9, this adapter allows you to connect ESATTO 3" to these telescopes. Remove the original focuser of the Borg 90FL and 107FL f3.9 and install ESATTO 3". In order to reach the focus you can use the same photo adapters that you use with the standard focuser.
Adapter from M81 to M57 with stop ring for ESATTO 3" allows you to connect any camera or accessory with M57 female thread. Just thread this adapter to the M81 thread of the ESATTO 3" draw tube. Thanks to the M57 stop ring for ESATTO 3" you can also fix the camera at a precise angle in order to better frame your camera sensor at the desired object.
The 134mm PLUS support rings are designed telescopes with tube approximately 134mm in diameter to expand the possibilities of use. In this way, for example, you can install both above and below the optical tube our PLUS plates or even guide rings. Compatible with telescopes by various brands. Like all the other elements of the PLUS series, these rings are...