- Parallelism: 30 arc seconds or better
- Size: 64.0 ±0.05
- Thickness: 3.00 ±0.05
- Scratch-Dig: 60/40
- Clear Aperture: 53mm min
- Flatness: 0.25 Fringes RMS
- Substrate Material: N/A
$335.00
$335.00
$335.00
In Stock: 6