William Optics Mounting Rings 90mm
These William Optics 90 mm felt-lined mounting rings are crafted from solid, high-grade aluminum and finished with a durable black anodizing. Designed to fit most 90 mm outer-diameter tubes, they are fully compatible with all William Optics 80 mm and 90 mm telescopes, including the Megrez 80/90 and ZenithStar 80. They are an excellent upgrade for getting the most out of your GEM or Alt-Az mount.
Constructed from precision-machined, fully anodized aluminum, these rings offer long-lasting durability and a premium appearance. Each ring includes five threaded mounting holes-external 1/4x20 imperial threading and internal M6 metric threading-ensuring easy attachment to most dovetail plates, including WO plates. The top side features matching holes for mounting accessories.
A soft felt lining protects your telescope’s finish, while the elegant black anodizing pairs perfectly with ZenithStar models such as the ZS80IIED. Smooth, comfortable knobs with Teflon tip protection secure the rings without marking the tube.
Each set includes two M6 hex screws for mounting. As expected from William Optics, the fit, finish, and overall craftsmanship are exceptional, providing both performance and beauty for your telescope setup.
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