The present invention relates to a full-field optical coherence tomography system (300) for imaging an object (319), comprising a light source (301), a first interferometric device having means for splitting an input light beam and comprising at least a reflecting surface (307), a second interferometric device having means for splitting the spectrally modulated output beam and comprising at least a reflecting surface, a multichannel acquisition device (321), the system (300) being characterized in that at least one of the interferometric devices includes at least a focusing optical element arranged to focus at least one of the input beams or at least one of the output beams onto the corresponding reflecting surface of the corresponding interferometric device.