The Green C-Stat is shaped in the same fashion as the Blue, except that holes have been placed on the mesial to allow the placement of an index material. The placement of the index creates more stability of the camera and exact realignment of the correlate image in proper position.

 The distance between the camera lens and the occlusal surface should be 4-5 mm. 

Use the green C-Stat for indexing with a distal rest