Agnicy Astronomical Telescope Accessories 1.25 Inches Filter Medium Gray Density ND2 ND4 ND8 ND16 ND32 ND64

Product details

Interface specification: 1.25 inches (for astronomical telescope 1.25 inches eyepiece)
Thread specification: M28.6*0.6mm
Transmittance: 52% transmittance ND2, 25% transmittance ND4, 12.5% transmittance ND8, 6.25% transmittance ND16, 3.12% transmittance ND32, 1.56% transmittance ND64
Lens material: acrylic
Frame Material: Metal-Aluminum
Colour: Black
if you want to buy 6PCS/Set with Box , pls go to the below link:
Astronomical Telescope Accessories ND2 ND4 ND8 ND16 ND32 ND64 Medium Gray Density Filter Set of 6 with Aluminum Case