- On/Off Lever Positions
- Internal and External SM1 Threading (1.035"-40)
- SM1 Lens Tube System Compatible
- Clear Aperture when Open: 7.2 mm (0.29")
The SM1SH1 Manual Beam Shutter provides a convenient "Open/Closed" labelled switch for propagating a beam through an optical assembly. The lever-actuated shutter is firmly held in position with a precision detent mechanism at both the opened and closed locations. The shutter has internal SM1 lens tube threads on one side and external SM1 threads on the other side, making it ideal for use with our lens tube systems. Please note that it is not recommended to use the SM1SH1 within a 30 mm cage system as the cage rods will interfere with the lever actuator of the shutter.