- Wavelength: 656.3 +0.2 / -0
- Emission Line: Ha
- Operating Temperature: 23.0
- Parallelism: Commercial
- Bandwidth (FWHM): 1.0
- Minimum Transmission: 45%
- Blocking: 1x10-4 avg. X-Ray to FIR
- Size: 50.0 ¯ +0 / -0.25
- Thickness: 6.4 +0 / -nom
- Scratch-Dig: Commercial
- Clear Aperture: 45mm ¯ min
- Flatness: Commercial
- Effective Refractive Index: 2.05
- Filter Type: 2
$643.00
$540.00
$489.00
In Stock