Thought this might be usefull to point out to any HD DSLR shooters using Manfrotto 501PL plates and systems.

Manfrotto Hydrostatic Ball Head with RC5 Rapid Connect System - Ball (http://www.manfrotto.com/product/0/468MGRC5/_/Hydrostatic_Ball_Head_with_RC5_Rapid_Connect_System)

Seems to offer a simple but well engineered way to add portrait flip capability to any standard video head by attaching this to the slide plate using a 3/8" screw.

Yes, it is most definately for 501PL plates, here's the parts list:

http://mediacdn.shopatron.com/media/mfg/2747/media_document/live_2/468MGRC5_20040910.pdf?1272346409

They do have a model which takes their 357 plates:

Manfrotto Hydrostatic Ball Head with RC3 Rapid Connect System - Ball (http://www.manfrotto.com/product/0/468MGRC3/_/Hydrostatic_Ball_Head_with_RC3_Rapid_Connect_System)

Parts list:

http://mediacdn.shopatron.com/media/mfg/2747/media_document/live_2/468MGRC3_20040910.pdf?1272346409

It is amazing what Manfrotto have squireled away in dark corners of their web site.

Enjoy.


CS