Important note: Antares seems to have reduced the ID of these rings slightly from previous production runs. While they still call them 4" rings, our measurements show that these are a bit smaller. Hence, while previous customers have indicated in reviews that these rings fit their 102mm diameter scopes, please note that this is no longer the case. Please use our exact size info presented below to verify if these will work for you.
Rings will fit tubes with an outer diameter of 3.88" - 3.95" (98.7 - 100.4mm).
These Antares cradle rings are high quality, cast-aluminum mounting rings that can be used for mounting telescope tubes on various mounts or on guidescope rails. All rings are hinged, felt-lined and have clamp-style rings for easy mounting or repositioning of the optical tube. Most rings have clamping knobs while a couple of size have clamping clips instead. Please see the photo for this product to determine whether it has a clamping knob or clip.
The base of the rings has a metric 6mm mounting thread. Gunmetal gray finish. If the outer diameter (OD) of the telescope is a little smaller than the inner diameter (ID) of the rings, you can shim the inside of rings with extra felt (not included). Price shown is for a set of 2 rings.
Antares cradle rings are available in over 10 sizes. However, if a size is not listed on our site, then we do not have it. Custom sizes are also not available.