|Losmandy VCB-11 radius blocks for use with Celestron 11" if mounting hole separation is 1.75" apart. |
These radius blocks are needed to attach the VSCT17 dovetail to a Celestron C11 optical tupe when the mounting holes are 1.75" apart. The radius blocks attach to the accesory mounting holes on the optical tube, and the dovetail attaches to them.
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