Common FoV of VIS and NISP. This image was generated from two VIS and NISP images taken simultaneously with common astrometry applied. The small blue numbers refer to VIS, and the large red numbers refer to NISP detector IDs. The interchip gaps of each mosaic is evident. The VIS detectors show an additional thin horizontal gap from the charge-injection lines. The respective spatial and angular offsets between both instruments are 52ʺ.5 and 0°.078. Figure from Euclid Collaboration: Mellier et al. (2025).