This Zwo Seestar S50 accessory kit is a must-have for any refractor telescope user. It includes a dew shield for stray light protection, Bahtinov focusing mask, lens cap, 2" filter adapter with magnet lockers, and dust lens cap. The kit is compatible with ZWO brand and Seestar S50 series telescopes. It is manufactured in the United States and suitable for all types of photography and observation. This accessory kit is perfect for astronomers who want to improve their observation experience. The dew shield eliminates the effect of dew on the lens, and the stray light protection filters out unwanted light. The Bahtinov focusing mask helps the user to achieve precise focus, while the 2" filter adapter is compatible with various filters of different brands like Optolong, ASKAR, IDAS, Antlia and so on. Accessories can be used separately or in combination with each other as well for example Filter + Dew Shield + Lens Cap or Bahtinov Mask. The lens cap and dust protection ensure the longevity of the telescope. Buy this accessory kit today and enhance your observation experience.