Filter, 2", neutral density, variable

USD $68.00
2" Cross-polarizing filter set with variable transmission 5%-30%. M48x0.6
Neutral density filters can reduce brightness across the visual spectrum without losing resolution, enhancing lunar-planetary observing. Can be used stacked with color filters. The 2FXP varies transmission from 40%-3% and threads into all 2" accessories. NOT FOR SOLAR VIEWING