My immediate reaction to these photographs was to admire them as art; as design, shape, color, they’re remarkable. My initial reaction to them as a dancegoer, however, was to think that the blurring was less appropriate to Mr. Cunningham’s work than it would be to that of many other choreographers. Still, the longer I looked, the more I saw. And most of these pictures came to deepen my love of a dance repertory that already engrosses me.