Recently,Sigma announced that For the retail market new 17-50mm F2.8 EX DC OS HSM lens for Pentax mount version will be listed Sept.17 , the reference price of 86,940 yen.

Sigma 17-50mm F2.8 EX DC OS HSM Lens

The lens on the whole , with Similar to the current mainstream 18-50 OS lens,Measurements for 83.5mm × 91.8.mm more portable .

The lens features : 1. joined the Sigma Self-developed OS anti-shake function , effectively improved the stability picture taken . 2 .  improved optical structure , For the first time joined the FLD lens (artificial fluorite lens), the lens can provide better dispersion control , further improve the resolution of a lens .

Lens Model 17-50mm F2.8 EX DC OS HSM

Lens Construction 13 group 17
Camera angle 72.4 ° -27.9 °
Physics, 17-50mm focal length
Maximum aperture of F2.8
Minimum Aperture F22
Aperture blades 7
Focus Range 28cm ~ ∞
Enlarge 1:5 ratio
Filter Diameter 77mm
Lens size 74mm × 88.6mm
Lens Weight 395g
Supplementary materials hood , the lens barrel