Designed for professional use, the <B>3021Pro</B> can easily hold anything from 35mm to small view camera systems. What sets it apart from the 3021N is the capacity of the center column. Converting easily to a lateral arm, this allows the photographer to mount the column ninety degrees relative to the legs, making for completely unobstructed straight-down shooting. This is a big advantage for macro shooters. <P><FONT face=Arial size=2>The <STRONG>488</STRONG> ball head features a strong die-cast aluminum housing plus an exceptionally hard, tough, phenolic resin ball that moves smoothly into position. </FONT>The 488 also features a double-groove for rapid side-to-side movement, and a separate fast-action ratchet lever for 360° pan and easy to grip locking knob for +90°-90° tilt movements. Suitable for Medium format cameras, or any 35mm or Digital SLR camera system.