Mounted Circular Neutral Density (ND) Filters
Original price was: $255.00.$97.99Current price is: $97.99.
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Circular ND filters provide continuously variable, linear attenuation of incident light by rotating the filter about its center. The transmitted intensity is varied as a function of the optical density range. An inexpensive, ergonomic hub assembly holds the glass filter securely to the mount block. The Delrin® hub ensures a protective surface against the filter. A convenient ¼-20 tapped hole in the aluminum mount block permits a variety of mounting configurations. The filter is rotated manually by turning along the outside edge, front knob, or rear turning screw. A 4″ long, 0.5″ diameter stainless steel post is included.
- Complete Package
- Smooth Rotation
- Stainless Steel Post is Included
| Angle of Incidence (°) | 0.00 |
|---|---|
| Substrate | B270 |
| Inner Diameter (mm) | 8.3 |
| Coating | Variable |
| Thickness (mm) | 2.00 |
| Blocking Wavelength Range (nm) | 400 – 700 |
| Parallelism (arcmin) | 3.00 |
| Optical Density Tolerance (%) | ±8 |
| Coating Specification | Continuously Variable Inconel from 0 – 310° |
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