Optimal rest-frame wavelength determined to be λ_RF = 1.37μm (red solid line). Approximately 1,300 galaxies in the sample have imaging in filters corresponding to this value, within a 20% margin of error (±0.27μm) indicated by the dashed lines. Most galaxies in the low-redshift bin are observed in the F277W filter, while those in the high-redshift bin are predominantly observed in the F444W filter. The plot illustrates the wavelengths of the available filters (blue) and the closest matching filter to λ_RF for each galaxy at its respective redshift (orange).