NS65B 65mm Optical Shutter


Current Lead Time: 3 – 4 weeks


Click to view the NS65B datasheet, which features mechanical and electrical specifications, timing data, and technical drawings.

The Uniblitz NS65B is a 65mm-aperture bi-stable optical shutter utilizing our patented N-CAS® technology. The NS65B’s simple design provides maximum clearance around the aperture, and a machined flat surface makes for its easy integration into telescopes, video cameras, etc. The NS65B has an overall diameter of 5.15 inches, and an electronic synchronization is available (by special order).

Bi-stable shutter devices, like the NS65B, require no power to hold the blades in either the open or closed state.

*The “For use in Vacuum” option will equip the shutter with encapsulated coils for vacuum levels up to 10-6 Torr. The housing, connector, and electronic sync options cannot be selected from the product builder when “For use in Vacuum” is applied as these options are not vacuum compatible and may cause outgassing. For higher vacuum-rated applications, or questions, please contact us.

Key Features

Check out the NS65B datasheet for additional information regarding features and specifications.

  • Large 65mm aperture
  • Bi-stable operation
  • Only two unique moving parts
  • Slim, low-profile form-factor
  • RoHS Compliant
  • Transfer time on opening: 33.0 milliseconds
  • Total opening time: 43.0 milliseconds
  • Can be configured for the VED24 or VDM1000 shutter drivers.


NS65B Datasheet Download
3D Models
NS65B 3D Model (STEP file included in ZIP) Download

Additional information

Driver Compatibility


Blade Option


Electronic Sync.

For use in Vacuum*


Flying Leads

No, Yes