Square Neutral Density Filters
from EKSMA OPTICS
EKSMA OPTICS neutral density (ND) filters attenuate VIS spectral region. The optical density varies from 0.1 to 3.0, 1 or 2 inches size square and roud shapes are available. Neutral density absorption type filters decrease the intensity of light without altering the relative spectral distribution of... [See More]
- Filter Shape: Circular; Square
- Filter Diameter, Side Length, or Rectangular Length: 25.4 to 50.8
- Neutral Density Filter Type: Absorptive
- Optical Density: 0.0500 to 4
from Rainbow Research Optics, Inc.
Rainbow Research Optics, Inc. (RROI) specializes in custom optics. We focus on wavelength ranges from 193 nm to 14 um. Our manufacturing capabilities include a wide range of optical components including lenses, mirrors, windows, prisms, beamsplitters, filters, coatings, and more. While we offer a... [See More]
- Filter Shape: Circular; Square
- Surface Quality: 20-10 Scratch / Dig
- Substrate Material: BK7 glass; UV grade Fused Silica; CaF2
from Rapid Spectral Solutions
Neutral density filters available in a wide range of optical densities and sizes. These filters are suitable for all general use. [See More]
- Filter Shape: Circular; Square; Rectangular
- Filter Diameter, Side Length, or Rectangular Length: 6.25 to 100
- Neutral Density Filter Type: Reflective; Absorptive
- Rectangular Width: 6.25 to 100