- Wavelength: 656.3 +0.5 / -0
- Emission Line: Ha
- Operating Temperature: 23
- Parallelism: Commercial
- Bandwidth (FWHM): 3
- Minimum Transmission: 50%
- Blocking: 1x10-4 avg. X-Ray to FIR
- Size: 12.5 √ò +0 / -0.25
- Thickness: 6.4 +0 / -nom
- Scratch-Dig: Commercial
- Clear Aperture: 9mm √ò min
- Flatness: Commercial
- Effective Refractive Index: 2.05
- Filter Type: 2
$147.00
$123.00
$112.00
In Stock