In an interview with Hans Scheugl about the ideas and techniques behind some of his films, the film-maker Kurt Kren told the following anecdote, which sheds an interesting light on his work. For his film Tree again (19...展开78), Kren used a highly sensitive infra-red color film, a type which usually has to be developed within a very short period of time. However, Kren who has always worked on a very small budget, only had a roll of film which was already five years past its expiry date and, as Kren says, "there was little likelihood of anything turning out on the film." But he still decided to take shots of a large and splendid tree surrounded by bushes and a stretch of pastureland over a period of several weeks, from summer to autumn - a series of individual pictures taken from the same camera position. As he says, "I didn´t have much hope - (I knew) it was a crazy thing to do." But Kren´s illogical hope and his unshakeable confidence in his material were rewarded. Tree again became one of Kren´s most beautiful works - although it is difficult to single out any individual work from a corpus of extraordinary density and variety which spans over thirty years and includes over 40 films. The tree, the field, the sky, in fact the entire picture radiates an unusual, almost eerie artistry, with its rapidly changing blue, green and reddish hues, sometimes brightly illuminated for the fraction of a second like the flash of lightening in a technicolor horror film. Or a sky of deep blue with clouds scudding across it, an airplane drawing condensation trails which fade away imperceptibly, the abrupt juxtaposition of sun and shadow and the strong, gusty movement of the wind amongst branches and leaves, as though an endless and destructive storm were at work. An apocalyptic picture, yet one that is full of a wonderful, quiet beauty - the changing of the sun, and the play of light, how autumn arrives in a matter of seconds and the leaves begin to fall, the shadows of grazing animals which appear and disappear in the blink of an eye.