Accessories: MRF^TM Finder: Bases

Three different styles of MRF bases are available for mounting the Burgess Optical/TMB MRF^TM finder on telescopes and binoculars. The MRF uses a wide dovetail-type mounting system for attaching the MRF to either a telescope or a pair of binoculars. An improved version of the MRF finder bases is available. The improved version has small side grooves machined in the sides of the base. The all-metal construction of the base and the MRF finders ensures that the MRF finder is securely fixed to the base and that the MRF finder maintains its alignment during use.

A ring base is available for attaching to the top of conventional 1 inch wide rings that have a 1/4x20 threaded opening. The base has a transverse slot that is 1 inch wide. The top of a ring platform fits into the transverse slot and a flat head screw attaches the base to the ring. The MRF Finder slides into the two small grooves machined into the sides of the ring base.

A flat base is available for attaching to a flat surface or a surface with low curvature. The flate base has two contersunk holes for attaching the base to a scope or mouting bracket. Also, the flat base is supplied with a piece of double-sided tape for adhering the flat base to a scope or binoculars. The pictured flat base shows the original version of the flat base. The orginal version has deeper side grooves than the new version of the flat base. Either version of the flat base works very well with the MRF finder. The all-metal construction of the flat base and the MRF finder makes for a secure connection that stays in position after the MRF finder is aligned.

A dovetail base is available for attaching the MRF to a standard Vixen/Orion dovetail base. The dovetail base is a low-profile base that is best used for dovetail mounts attached to the optical tube. The center of the MRF window is approximately 2-1/8" above the inside-bottom of the dovetail mount.

The above-pictured dovetail mount is the one that is supplied with the 8x50 finder mount.

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