Note: S50 Telescope Dew Shield combination can be directly installed on the telescope lens except Cap Cover, and the rest including Bahtinov mask Diffraction Spike Set need to be combined with Dew Shield

S50 Telescope Dew Shield combination Include:Dew Shield Cap Cover Bahtinov Mask Spike Diffraction 4 veins Spike Diffraction 6 veins.Bahtinov mask and divergence spikes can only be connected to the lens through the dew cover in the assembly, and cannot be directly installed on the lens

S50 Telescope Dew Shield combination function 1: Bakhtinov mask can make the light received by the lens form three rays on the lens. Only need to adjust your focus ring so that these three rays cross at one point, and perfect focus will be formed.Diffraction Spike Mask Slide is used for cool fun effects on bright stars. Simply slide it in, then watch as stars get cool spikes

S50 Telescope Dew Shield combination function 2: MASK DELUXE Dust Cover, which allows you to protect the optics of the Seestar S50. And yes, can even power down the Seestar with the Dust Cover installed. A rain cover can prevent your telescope optical system from fogging first. and the design of internal frosting can reduce the refraction of some light,observe for hours with perfect angle

High quality materials: S50 Telescope Dew Shield combination are customized by ABS, which are very firm, elastic to temperature changes, difficult to absorb moisture, helpful to maintain the dryness and stability of S50 Telescope Dew Shield combination, high surface gloss and good surface texture