Baader T-2 adjustment spacer-rings

T-2 adjustment / spacer-rings.

These have a number of uses, including:

• Tune the rotary position of all kinds of T-2 or M42 accessories in approx 90° increments, to move locking screws of eyepiece holders into a comfortable position.
• Helps to prevent binding when used as spacer between two metal surfaces connected w. T-2 thread.
• Set distance between camera and off-axis-guider
• Set distance between a field flattener or focal reducer and the camera

Set of 15 pieces in 5 sizes, three rings per size (thickness 0,6/0,8/1,0/1,2/1,4mm).