I have a 240mm Fujinon lens (love it) for my Tachihara, and am thinking of getting something longer. Apparently, the Tachihara has a max bellows draw of 330mm. I presume that with a 300mm lens, I could focus to inifinity no problem, but have no idea how much closer I could get, and whether the camera would be unstable, or otherwise strained. How much of an extended lens board would be required / possible / practical, to accommodate a longer lens ? Would using it introduce other problems ? Does anyone have experience using 300mm+ lenses with the Tachihara ? Thanks !