The invention relates to an image apparatus for endoscopes, which makes sure easier viewing especially at a peripheral portion of a screen while taking care of the observing angle of view and size of an optical system. The image apparatus comprises an optical system adapted to form an optical image of an object, an image pickup device adapted to convert the formed optical image into electric signals to obtain image data, and an image processing means adapted to move and transform a position of the optical image acquired by the image pickup device. A radiation direction magnification is transformable by the image processing means independently from a concentric direction magnification, and a magnification for a conformal object is higher at a peripheral portion than at a central portion of a screen.