Nidelva river through Trondheim Norway

Nidelva river through Trondheim Norway
by Saaru Lindestokke                

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While there is no universal terminology, your intuition is following the right direction. With a single knob, obviously it adjusts everything. You loosen it to place the head and tighten it when done. Most dual action ballheads though have one knob for releasing the tightness on the ballhead and one for allowing separate rotation at the base. The point is ...

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