The Metal Dew Shield + Bahtinov Mask for the ZWO SeeStar S50 / S50 Pro smart telescope is essentially two practical accessories in one package. The dew shield protects your instrument from early condensation, allowing you to spend more time under the night sky. The Bahtinov mask, which attaches to the dew shield, is a great aid for precise focusing.
The dew shield is made of black anodised aluminium, while two O-rings ensure a secure, slip-free fit.