NiSi SMC UV Filter (52mm to 82mm) Fotopro_X Series the Alt-Az mount is far

the Alt-Az mount is far more intuitive to use than a German Equatorial mount

with Phone Camera Lens

a polarization effect can instead be obtained by placing a separately available

With Natural Night Filter:

NiSi SMC UV Filter (52mm to 82mm) Fotopro_X Series the Alt-Az mount is farUltra thin: Minimize vignetting effect on wide angle lenses Multi coating on both sides of the filter High quality optical glass for high transmittance and highly smooth surface Protect the lens from dust, damage to the front element Easy to clean NiSis MC UV series ultra thin filters adopted a special technology of double sided, multi coating, the lens employs high quality Japanese optical glass, which assures high transmittance and highly smooth