NEW SIGMA 18-250MM F3.5-6.3 DC MACRO OS HSM LENS
Sigma Corporation of America announces the new 18-250mm F3.5-6.3 DC Macro OS HSM lens, which offers a more compact size, macro capability with a maximum magnification ratio of 1:2.9 and the use of Thermally Stable Composite (TSC) material. Often compared to polycarbonate, TSC has a high degree of elasticity and exhibits little variation in its [...]