 "Bogen Manfrotto 501 Quick Release Plate Long"@en Long 501PLONG - Filmtools"@en
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Long version of the standard plate
Allows perfect balance 
Laser engraved scale
Supplied with 2 x 1/4" and 2 x 3/8" camera fixing screws
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 " Manfrotto 501PLONG Video Long Rapid Connect Mounting Plate "@en - Optics4Birding
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                            The Manfrotto 501PLONG rapid connect plate fits 501HDV and 701HDV video heads and extends the ability to balance cameras and spotting scopes.
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