Accessory · MSRP $1,802
Astro-Physics 3.5" Rotating Focuser with FeatherTouch Micro 9:1 Dual-Speed (35FOCER-FT)
Key specifications
| Accessory type | Focuser |
|---|---|
| Weight | 3.14 kg |
All specifications
| Interface | 3.5" circular dovetail endcap; 4.100"x24 male drawtube thread |
|---|---|
| Compatible with | 130 StarFire EDFGT (direct thread swap); 155 StarFire EDFS/EDF via ADA4F-35F; scopes built by the owner |
About
The 3.5-inch rotating focuser introduced with the 130 StarFire GTX: a greaseless drawtube with more than a dozen machined knife-edge baffles, Feather Touch 9:1 Micro dual-speed knobs, adjustable drag screws and a thumbscrew brake, built so even heavy cameras focus repeatably without flexure. A captain's wheel locking collar frees the focuser to rotate to any angle, and the endcap terminates in a 3.5-inch circular dovetail for orthogonal, quick-swap imaging trains.