A remote sensing instrument using optical aperture synthesis comprises at least two independent remote sensing devices each comprising at least two light collecting means delivering light beams and having a selected field of view and a selected resolution and further comprising recombination means adapted to recombine interferometrically the light beams delivered by said devices so as to deliver a final light beam associated with a resolution better than or equivalent to the lowest resolution of said devices and/or a field of view less than or equal to the largest field of view of said devices.
