Naoki Ishikawa does not seem to want to take fantastically dramatic photographs. He has travelled from the North to South Pole, climbed "The Seven Summits," the highest mountains of every continent, and traveled the length of the Japan, but his images are remarkable for their restraint and subtlety. In his solo show at Art Tower Mito, there are awe-inspiring views to be seen — the huge slab-sided wall of a glacier jutting into the sea under an overcast sky, for example, or the peak of Mount Fuji floating on a sea of clouds — but pictorial extravagance may not be the main point.