30mm F1.4 EX DC HSM
For use with smaller chip APS-c and 4/3 cameras only
HSM (Hyper-Sonic Motor) ensures a quiet & high-speed auto focus
Aspherical glass elements offer correction for distortion
Special Low Dispersion (SLD) & ELD (Extraordinary Low Dispersion)glass provides optimum color correction & sharpness
A lens hood, front/rear lens cap and carrying case are included with the lens.
that vignetting on FF is horrible i can tell u. and u waste time removing that black patch vignetting.