The Venus Optics Laowa 7.5mm F/2.0 Lightweight Black MFT is a very compact and lightweight wide angle lens for micro four thirds. Its small size makes this lens perfect for use with drones. 

It is composed of 13 elements in 7 groups, has a minimum focusing distance of 12 cm and a front diameter of 46mm. It also has a pair of aspherical and extra-low distortion elements for reduced chromatic aberrations and distortion. 

The dimensions of the lens are 50 x 55mm and it weighs 170g.