Overview

The Venus Laowa 4mm F2.8 Fisheye MFT offers a 210° field of view in a tiny, all-metal build weighing just 120-135g. It is sharp in the center wide open and across the frame by f/5.6, with well-controlled flare and ghosting. Weaknesses include significant chromatic aberration away from center and a slightly oversized image circle causing cropping at top/bottom. The bulbous front element is prone to fingerprints, but a metal body cap and focus tab aid handling. It suits photographers wanting an ultra-wide, fun fisheye for creative shots, especially those comfortable with manual focus and post-processing.