1. Recording apparatus for producing a record of an object field in which substantially perspective change in one direction only is recorded, said apparatus comprising elongate aperture means, an array of lens elements extending in two dimensions and disposed in an image field, each lens element being convergent in all planes orthogonal to said array, and recording means associated with the lens elements, such that, in use, each lens element of the array forms an image on said recording means, each recorded image being derived from rays from a range of perspectives of the object field in one direction and a substantially smaller range in an orthogonal direction, and each recorded image being distinct from each other recorded image.