title_left:  "Manfrotto 501PLONG Long Quick Release Plate" 501plong on Markertek - America's Broadcast Supply House"
description_left: "<b>Manfrotto</b> <b>501PLONG</b> Long Quick Release Plate" 
title_right:  " Manfrotto 501PLONG Video Long Rapid Connect Mounting Plate "@en - Optics4Birding
description_right: "
                              The Manfrotto 501PLONG rapid connect plate fits 501HDV and 701HDV video heads and extends the ability to balance cameras and spotting scopes.
                          "@en 