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For adapting the TeleVue 4X Powermate to Quantum or ION filters. Makes your optics train much shorter. No PMT adapter required. Simply unscrew the 2" female drawtube from the Powermate, screw the drawtube to this plate, and then attach this plate to the Quantum or Ion with three screws to the RED (eyepiece) side of the filter.

Male M48x0.75 thread to Quantum/Ion 3 hole pattern. 3" diameter, 0.67" thick. Plate weighs 0.13 lb.