During all of the more than twenty years that Joachim Bonnemaison has been a professional photographer he has been deeply interested in both panoramic and anamorphic imagery. Between 1980 and 1985 he created and then refined cameras that produced panoramic photographs (<<rotocaméra>> ; the models are in the Nicéphore Niepce museum in Chalon-sur-Saône) ; then in the beginning of the nineties he invented a <<perigraphe panoramiqe instané>> and a <<périgaphe hémisphérique>>. Utilizing the possibilities these inventions allowed him in combination with electronic processing he was able to concentrate on the development of a panoramic vision aesthetic. The process the <<périgraphe>> is based on is a simple one: a special mirror formed like a drop of water is placed above the lens. This combination produces a circular (360°) panoramic image with a black hole left in the center. (Concave and convex images can be produced and combined one being placed in the black hole left in the other). The images shown here were electronically combined and a new negative made which could then be printed in the usual way.