Abstract: Silver halide photographic emulsion shows a dielectric dispersion (Maxwell-Wagner effect). For a silver halide emulsion sample, there exists a maximum in the curve obtained by plotting the dielectric loss, ε″, versus frequency, f. From the curve ε″~lgf, the ionic conductivity of the silver halide microcrystals, σ₂, can be deduced. The dielectric constant of gelatin, ε₁’, depends on f and the nature of the gelatin, ε₁’ varies also with degassing of the sample. The values of ε″_max, ε’_max and σ_ε. increase with increasing moisture content of the sample. At the same time, the lower part of the curve ε″~lgf rises and f_max shifts to lower frequencies.Strict control over the moisture content of the sample by evacuation is the key point for obtaining accurate σ₂. The influence of the thickness of the sample and the radius of the electrode on lgfmax is also examined.