- Parallelism: 3 arc minutes or better
- Size: 61 +0 / -0.1
- Thickness: 2 ±0.1
- Scratch-Dig: 80/50
- Clear Aperture: 58
- Flatness: < 1 wave
- Substrate Material: Silicon
$197.00
$197.00
$197.00
In Stock: 9