![Adjustable Optical Slit](https://productimages.edmundoptics.com/2776.jpg?w=305&quality=80)
- 6mm Maximum Clear Slit Opening
- Fine Micrometer-Driven Mechanical Slit Adjustment
- ¼-20 Hole for Mounting
![High Power Apertures](https://productimages.edmundoptics.com/20665.jpg?w=305&quality=80)
- Ceramic, Copper, Gold-Plated Copper, Molybdenum, or Tungsten Substrates
- Withstand High Power Densities up to 130MW/cm2 (For Mo and W Substrates)
- Ideal for Spatial Filtering and Laser Aperturing
![Acktar Blackened Pinholes](https://productimages.edmundoptics.com/7692.jpg?w=305&quality=80)
- Low Reflectance from the EUV to SWIR
- 99% Absorbance Blackening Coating
- Aperture Sizes from 20 to 1000μm
- Available Unmounted and Mounted
![Acktar Blackened Air Slits](https://productimages.edmundoptics.com/7694.jpg?w=305&quality=80)
- Wide-Band Low Reflectance Coating
- 99% Absorbance from the EUV to SWIR
- Slit Sizes Down to 25μm x 3mm
- Unmounted and Mounted Versions Available
![Precision Air Slits](https://productimages.edmundoptics.com/2066.jpg?w=305&quality=80)
- Mounted Version Provides Secure Mechanical Support
- Used in Optical Systems and Educational Efforts
- Ideal for Spectrophotometer Image Analysis
![Unmounted Precision Pinhole](https://productimages.edmundoptics.com/20667.jpg?w=305&quality=80)
- Available in Aperture Mounts for a Secure Mechanical Support
- Pinhole Sized Ranging from 1 to 1,000 Microns
- High Power Apertures Available
![2-Axis Adjustable Slits](https://productimages.edmundoptics.com/20720.jpg?w=305&quality=80)
- Two Independently Adjustable Axes
- Any Rectangular Slit Size up to 10 x 10mm
- 50mm Outer Diameter for Ease of System Integration
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