Is the "3 inch accessory ring" the same thing as the mounting plate- for the STXL series specifically? Thanks Dave
Yes. It seems to go by several names! http://diffractionlimited.com/product/stxstxl-mounting-plate/ Part Number 10018 aka STX/STXL Mounting Plate (the official name) aka 3" Accessory Plate aka 3" Accessory Ring