The S2287 is a focusing rail with a 350 mm rail body. The length refers to the rail itself, excluding the projecting control knob; it is not a specification for usable focusing travel.
Position reference and adjustment
The marked rail scale provides a visible reference for component position. The focusing control is located at the end of the rail, as shown in the photographs.
Check the mounting arrangement
Match the rail and carriage interfaces to the intended camera assembly. Rail length alone does not establish compatibility or available focus travel; both depend on the installed components and their clearances.
Specifications
| Rail-body length | 350 mm, excluding the control knob |
| Usable focusing travel | Depends on the installed assembly |