As a enthusiastic landscape photographer, I have learned that to get the best out of one's camera lens, it is always advisable to use a tripod. I suppose that this is what you folk on the western side of the Atlantic ocean would call a no-brainer. For several years I have owned and used a compact Manfrotto tripod which has served me well, but have noticed that when using it with a medium telephoto (Pentax 135/f2.5) on my Panasonic G1, it is not ideal. Legacy lenses need to be manually focussed and to do this effectively one has to enlarge the image in the viewfinder/or on the flip-out screen. It is here where I have noticed just how "wobbly" this image becomes as one rotates the focussing ring. Presumably, I need a heavier tripod. Any tips ? Preferably Manfrotto.