The invention describes a lead-free and arsenic-free special short flint glass with a refractive index 1.60≦nd≦1.65, an Abbe number of 41≦νd≦52, a relative partial dispersion 0.551≦PgF≦0.570 in the blue spectral region, a relative partial dispersion 0.507≦PCs≦0.525 in the red spectral region, a negative deviation of the relative partial dispersion from the normal line ΔPg,F≦−0.0045 and an improved chemical resistance which has the following composition (in % by weight): SiO2>50–65   Al2O30–7 B2O30–6 Li2O0–6 Na2O 3–11 K2O0–6 MgO 0–12 CaO 1–12 BaO0–8 La2O3 0–15 Ta2O5 0–10 Nb2O5 4–20 ZrO2>10–20   Σ(CaO + MgO + BaO) 1–25 Σ(Na2O + K2O + Li2O) 3–20 SiO2/(ZrO2 + La2O3 + Nb2O5 + Ta2O5)1.5–2.3.