The Gershun Tube Kit is an optical assembly that attaches to a spectrometer or SMA 905-terminated optical fiber to control the FOV of the setup. Each assembly comprises a conical base and middle and outer barrels that are threaded together. User-interchangeable apertures can be installed to adjust FOV at different increments from 1°-28°.
- Control Field of View – restrict FOV to know values from 1°-28°
- Versatile – couples to fibers or directly to spectrometers
- Easily configured – switch out apertures within seconds