Mitakon 20mm f/2 4.5X Super Macro Lens is very compact in its class which allows photographers to capture extremely fine details or patterns with ease. The lens is capable of creating unbelievable macro images ranging from 4x to 4.5x magnification. Users no longer need to DIY or use any extension tubes to reach high magnification shooting. It incorporates a 6 element / 4 group structure which delivers impressive resolution from corners to corners. Weighing merely 0.5 lbs (230g) and 6cm long, it is a perfect companion for wildlife and outdoor shooting. The wide angle of view and close focusing distance allows you to compose creative images with more information included into the frame. Greater magnification (up to 13:1) can also be achieved by stacking extension tubes or bellows. The high magnification is also extremely useful for scientific purposes. The enclosure of the lens is made of metal to strengthen its durability.