Scaling relations for the candidate satellites of NGC 2750 compared to the distribution of values for known dwarf and ultra-diffuse galaxies. In the upper left panel is shown the absolute visual magnitude M_V vs the central surface brightness μ_V(0) (in units of mag arcsec⁻²); in the upper right panel, M_V vs the effective radius R_e (in units of parsec), with overlaid lines of constant μ_V(0) (at 29 and 30 mag arcsec⁻²); in the lower left panel, μ_V(0) vs R_e; in the lower right panel, M_V vs the de-reddened colour index (g−r)₀. The candidate satellites of NGC 2750 are marked as coloured diamonds, assuming a group's distance of 42±7 Mpc. They are compared to the dwarf galaxies from the ELVES (Carlsten et al. 2022, dark-gray squares), SAGA (Mao et al. 2021, leftward dim-gray triangles), and LIGHTS (Zaritsky et al. 2024, rightward gray triangles) surveys, together with the ultra diffuse galaxies of the Coma (van Dokkum et al. 2015, black diamonds) and the Virgo (Lim et al. 2020, black hexagons) clusters and in the MATLAS survey (Marleau et al. 2021, black stars).