CS45 45mm Optical Shutter


Current Lead Time: 3 – 4 weeks

Expedites are subject to availability and will be approved upon order confirmation.


Click to view the CS45 datasheet, which features mechanical and electrical specifications, timing data, and technical drawings.

The Uniblitz CS45 has been designed to provide accurate, repeatable exposures for a wide variety of applications such as telescopy and aerospace. The slim form-factor provides a large 45mm aperture that can be inserted into a 4.00 inch diameter housing. The CS45 is available in a housed or an un-housed configuration for OEM applications (or simply where spatial limitations are a consideration).

Uni-stable shutter devices, like the CS45, require power to hold the blades in the open state.

A 501A-S7 Shutter Adapter Cable is required for use with VMM-D3, VMM-D4, D880C and any VCM-D1 purchased prior to November 2022. The 501A-S7 is not included with the purchase of a CS Series Shutter. Additionally, the 5-pin female mating connector (5F) is no longer included with purchase.

A normally open configuration of this device is available by special order. Please contact us for more information.

*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 CS45 datasheet for additional information regarding features and specifications.

  • Large 45mm aperture
  • Uni-stable operation
  • 5-bladed design
  • Slim form-factor
  • RoHS Compliant
  • Transfer time on opening: 14.0 milliseconds
  • Total opening time: 20.0 milliseconds
  • Configured for the VCM-D1 Shutter Driver


CS45 Datasheet Download
3D Models
CS45 3D Models (Housed, unhoused, normally open – STEP files included in ZIP) Download

Additional information

Driver Compatibility




Blade Option


Electronic Sync.




For use in Vacuum*