Sigma 50mm F1.4 EX DG HSM Black

50mm F1.4 EX DG HSM, Pentax AF Designed for use with full frame digital cameras. May also be used with smaller APS-c size sensors with a corresponding effective increase in focal length to about 90mm with most cameras.

- HSM (Hyper-Sonic Motor) ensures a quiet & high-speed auto focus
- Designed with molded glass aspherical lens elements for superior corrections of chromatic aberration & high image quality at all working distances
- HSM (Hyper-Sonic Motor) ensures a quiet & high-speed autofocus
- 9 blade diaphragm creates a pleasant out-of-focus- effect on backgrounds
- A lens hood, front & rear lens caps and carrying case are included with the lens.