- Wavelength: R Filter
- Operating Temperature: 23.0
- Parallelism: 30 arc seconds or better
- Bandwidth (FWHM): 250
- Minimum Transmission: 85%
- Blocking: 1x10-4 avg. X-Ray to 1100nm
- Reflection: AR < 0.5% Exterior Surfaces (typical <0.2%)
- Size: 25.0 +0.00 / -0.25
- Thickness: 5.0 ±0.1
- Scratch-Dig: 60/40
- Clear Aperture: 90% of O.D.
- Flatness: 0.25 wave per inch or better
- Angle of Incidence: 0
$295.00
$254.00
$224.00
In Stock