Rail Units BASIC RAIL 12″/30 cm 422.21 As many extensions as desired can be at- tached to either side (black end) of a basic rail, but it cannot be used as a rail ex- tension itself. The 12″/30 cm Basic rail is supplied with every Sinar camera. RAIL EXTENSION 6″/15 cm 421.21 RAIL EXTENSION 12″/30 cm 423.21 RAIL EXTENSION 18″/45 cm 424.21 For lengthening the optical bench by 6″/15 cm, 12″/30 cm or 18″/45 cm, respec- tively. As many extensions as desired can be attached to the red end. • With the Special Rail Cap 428.31, these rail extensions can also be used as basic rails. RAIL CAP 429.21 End caps for Basic Rail 30 cm (12″) 422.21 and for the long Basic Rail 90 cm (36″) 425.21, as well as for the red ends of rail extensions. Prevents unblocked standards from sliding off the rails. SPECIAL RAIL CAP 428.31 Prevents unblocked standards from slid- ing off the rail when rail extension 423.21 or 424.21 is being used as a basic rail.

Image: Justin Cooper