114mm / 4.5" 150mm / 6" 203mm / 8" Astronomical Telescope Tube Rings 132mm 185mm 228mm Inside Diameter Adjustable Hoop A Pairs
132mm diameter inside tube ring for 114mm / 4.5" Astronomical Telescope
185mm diameter inside tube ring for 150mm / 6" Astronomical Telescope
228mm diameter inside tube ring for 203mm / 8" Astronomical Telescope
Set of two cast-aluminum telescope tube rings with quick-release, hinged clamp knobs and felt lining.
132mm diameter inside tube ring for 114mm / 4.5" Astronomical Telescope
185mm diameter inside tube ring for 150mm / 6" Astronomical Telescope
228mm diameter inside tube ring for 203mm / 8" Astronomical Telescope
Set of two cast-aluminum telescope tube rings with quick-release, hinged clamp knobs and felt lining.
Inside tube ring diameter is 132mm, use with telescope optical tubes up to 132mm in outer diameter
Sold in sets of two rings.
Inside tube ring diameter is 185mm, use with telescope optical tubes up to 185mm in outer diameter
Sold in sets of two rings.
Inside tube ring diameter is 228mm, use with telescope optical tubes up to 228mm in outer diameter
Sold in sets of two rings.
Mounting bolts and washers are included.
One ring has 1/4"-20 piggyback camera adapter; the other has threaded 1/4"-20 hole.
On Apr 13, 2025 at 21:05:22 PDT, seller added the following information:
