Identification of VIS-dropout candidates in the A2390 and A2764 fields. The top panel shows an example of an LBG candidate at a redshift of z > 6, and the bottom panel shows an ERS, most likely located at a lower redshift. For each of these sources, the top row shows the cutout images of the source in the VIS and NISP filters, together with an NISP stack and a color-composite image based on the Y_E, J_E, and H_E filters. The size of these images is about 7″ × 7″. The bottom panel illustrates the best-fit model (blue and orange curves) to the Euclid photometry (colored circles with associated 1 σ uncertainties). The gray horizontal bars denote the 3σ depth of each band, while the down-pointing triangle marks the upper limit of the I_E band. The left inset presents the posterior distribution function for the photometric redshift (see Weaver et al. 2025, for details).