After much use I see for pictures with a SLR camera with a 200mm zoom around this issue is really insufficient stability. It is light, compact and convenient, but the quality of the plastic joints at the head and locking systems are really too minimalist very difficult to really stall position including toggle the unit vertical field. In addition, pressing a little reflex on the base plate to remove the game it was split in two. It's really bad quality or design problem then. I just invest in a top model Vanguard Alta Pro 263 AB100, here we see the difference and I can now make sharp pictures at bottom zoom or macro. But farewell compactness and lightness of Hama, I therefore ressortirai according to circumstances