Sigma 50-100mm f/1.8 DC HSM Art Lens construction: 21 elements in 15 groups Three FLD, one SLD elements, one high-refractive-index high-dispersion glass, three high refractive index SLD glass Filter size: 82mm Shortest focusing distance: 95cm Maximum magnification: 1: 6.7 Total length: 170.7mm Maximum diameter: 93.5mm Weight: 1490g Aperture blades: 9 (circular aperture) New thinned ultrasonic motor Inner focus, […]
