Log N − log S plot for the sources detected in the Abell 1795 field (shaded curve with 1σ uncertainty) and in the 7 Ms Chandra Deep Field South (Luo et al. 2017). Despite the excess in the number of Abell 1795 field sources seen at ∼10⁻¹⁴ erg cm⁻² s⁻¹, which can be attributed to the cosmic variance, the distributions are in good agreement at fluxes below ∼6 × 10⁻¹⁴ erg cm⁻² s⁻¹. No excess can be explicitly attributed to unidentified clumps among wavdetect sources.