Long focal slide with steel ball pivot and with mechanical stop

Long focal slide with steel ball pivot and with mechanical stop for locking on axis, from EROS IV optical transfer function measuring system for lens testing, made by R & J Beck Ltd. in about 1966

Details

Category:
Optics
Object Number:
1993-1461 Pt7
type:
slide
credit:
Ealing Electro-Optics Plc