 "Manfrotto 502HD Pro Video Head w/ Flat Base MVH502AH" " Manfrotto MVH502AH For sale! - EuroOptic.com
"This Manfrotto 502HD Pro Video Head with Flat Base has a 3/8-16" Connection and is designed for use with HDSLR cameras." 
 "Manfrotto X-PRO 3-Way Camera Head - Black"@en Black LN67517 MHXPRO-3W | SCAN UK"@en
"Manfrotto X-PRO 3-Way Head with Retractable Levers & Friction Controls, 3/8" Female Thread, -30° / +90° Tilt   "@en 