Panasonic Lumix S 18mm F1.8 Ultra-Wide (S-S18) Mirrorless LensLUMIX S 18mm F1. 8 is a large diameter prime lens compatible with all L mount cameras for maximum versatility. It features a common size and position of control parts with the other series of F1. 8 lenses (S S85, S S50, S S24, and this S S35), with a center of gravity that is almost the same, so it is easy to exchange lenses quickly with minimum balance adjustment when the camera is on a gimbal. They all feature rugged dust splash resistant* design