Check the listing for details. OA ZWO Seestar S50 55mm Threaded Filter Holder. Condition: New. Listed at 11.58 USD. Are you ready to take your stargazing experience to the next level? Our 55mm Seestar S50 Filter Holder with an M55 0.75 Thread Size is the perfect accessory for amateur and professional astronomers alike. Whether you're observing distant galaxies, capturing stunning astrophotography, or studying celestial objects in detail, this filter holder is an essential addition to your Seestar S50 setup. ✨ Versatile Filter Compatibility: Use this holder with various 55mm filters with M55 0.75 thread sizes, such as light pollution, dual band, and uhc filters, to enhance your observations and astrophotography. ** If ordering internationally please be aware that you may have to pay additional import duties and sales tax. This will vary depending on your country and is not a charge imposed by Oak Astro,.