Made to mount our 50 - 60 mm finderscopes to a Schmidt-Cassegrain (SCT) telescope. This has a dovetail shoe that attaches to the mirror cell on 8” and larger Celestron or Meade SCTs. A small dovetail slides into this shoe with the finder rings. This creates an easy, quick disconnect allowing the rings and finder to be removed from the telescope. The SCT shoe is larger in size than the shoe on the R50FA. Click on the diagram above to see the dimensions.
SCT's use different size mounting screws so this ring system does not come with them. It is important that the screws you purchase for mounting this dovetail shoe on the telescope be the same thread size as what you removed and that the screws you purchase do not go into the mirror cell deeper than those that came out. If the screws are too long, they may strike the mirror inside! So, place the dovetail on the SCT mirror cell and measure the distance from the top of the slot on the dovetail to the threaded hole, then add the length of the screw that came out of the hole. The screws you purchase should be slightly less than this combined length.
