Optolong L-PRO 2-inch Telescope Filter for Schott Glasses IAD Coating High Quality Astronomical Accessory

Optolong L-PRO 2-inch Telescope Filter for Schott Glasses IAD Coating High Quality Astronomical Accessory

Features:
- It uses high-quality substrate, undergoes double-sided grinding, polishing, and planar interferometer testing to ensure the flatness of the substrate, resulting in ultra-high optical performance of the coated product.
- Exquisite packaging, EVA material, lined with high-density sponge.
- Laser engraved logo with ultra-thin frame design.
- After spectral testing with the spectrophotometer for Shimadzu, it is ensured that the filter has accurate spectral characteristics.

Specification:
- Material: for Schott glasses
- Process: double sided precision grinding and polishing treatment, filter edge sanding and matte treatment, IAD Coating, high-quality aviation aluminum material, CNC processing, filter ring anodizing treatment.

Package Included:
- 1 x 2-inch Filter