T2 sliding focuser for 1.25″ eyepieces / 10mm stroke.
The T2 sliding focuser is a variable T2 extension with a
Stroke of 11mm. It can also accommodate 1.25″ eyepieces and thus serves as a
Basis for a variable off-axis guider. One of the two
Thumbscrews fix the position of the sliding focus. they have one
Adjustment range of 11mm. The other knurled screw fixes the eyepiece
in the sliding focuser when used as a base for an eyepiece projection
adapter is used. The T2 sliding focuser can also be used as a
variable T2 extension sleeve can be used. Optically effective
Overall length from 27.5mm to 38.5mm (continuously adjustable) with mount
for 1.25″ eyepieces (can be clamped).
Telescope side: T2 internal thread
Camera side: T2 external thread