I am considering a new tripod. I will be using it for some hiking, some nightime long exposure stuff and occasionally for indoor portraits or still life. I have a "video" tripod now that although very stable is also pretty heavy when your packing it through the woods all day so I want to get something that will fit my needs a little better. What do you use now? What brand? What style of head? What material for the legs? How many segments? What would you suggest for my needs?