The Cullmann Magnesit 525 Tripod Legs is an intelligently-designed standard class tripod meant for use with SLR cameras and the typical lenses serious enthusiasts would use, such as a semi-professional SLR with an f/2.8 constant aperture telephoto zoom lens. The Magnesit 525 reaches a maximum height of just over 5" and thanks to the independent leg spread and 2-part center column it can operate at a very low working height of just over 7". The 525"s crown has a special design which mates with Cullmann"s Magnesit Nm series ball heads in a locking, 100% secure fashion.The 525 is named the "Magnesit" because of its extensive use of magnesium in the casings and fittings. Magnesium"s a light and stable metal, helping to contribute to the quite tolerable weight of under 4 pounds, an excellent number for this class of aluminum-based tripod.