Since 1969 I've usually preferred Tiltall tripods over the several other brands I own. Some people claim those labeled Leitz may be better, but in my experience the differences between the original Marchioni and those labeled Leitz or Star-D are insignificant. The Star-D did have plastic knobs which can break if grossly abused. Tiltalls work well enough with a 5x7 camera and 21" lens on wind-free days. A Marchioni Tiltall gave me no trouble in Greenland, with temperatures down to -60 Fahrenheit. Cameras may come and go, but a good tripod is a lifetime investment. Choose it well.